Monday, July 12, 2021

WBCS Polity and Constitution MCQs Prelims and Mains

WBCS Books List Recommended For Prelims and Mains Exams | Updated

Recommended booklist For WBCS Prelims and Mains Exams



The expectation from aspirants is increasing day by day because of high competition in govt jobs. When we talk about the WBCS (West Bengal Civil Service ) exam it is not different. The number of real competitors is not so high in WBCS. But, competition among these competitors going tougher day by day. You can identify it clearly by observing the previous year's cut-off marks and the number of candidates attending the main exams. 

Whatever might be the situation the books preferred by WBCS aspirants always be the same. Everybody reading the same books and someone became a topper and others don't even able to crack the preliminary exams.

No matter how well you prepared, if you cannot perform well in the exam, the outcome will always be disappointing. Your performance always directly related to what you are reading. So, choosing the right books is the most important part of your preparation. We have come here with a list of standard books written in English and Bengali language. There are some WBCS Books especially recommended for WBCSers are in Bengali. These are the books preferred by most WBCS aspirants. It is not possible to cover high-volume books in every subject, so choose very wisely. Always prepare selectively and don't read the complete textbook in a single go. Every exam follows some pattern, so go through the previous year's question and try to find the pattern and what is important for WBCS Exam. If you are a beginner at this preparation I always recommend you to buy some guide books and you will learn during the process what needs to buy next. Don't take the internet for granted. Use the internet as much as you can. It will help you to prepare faster.

I would suggest you buy some guidebooks which contain an overview of the whole syllabus and important areas. Watch crash course from YouTube on the various subject in the beginning. Get the basics and then decided to buy a textbook on a certain subject. The guidebook is mentioned in the last of the list.  Practice previous year's question is one of the key factors for cracking the WBCS. We have covered all the previous year's questions in this portal which has been asked in the WBCS examination. We have also recommended some books among the alternative. This is a personal recommendation. You can only choose what is best for you. Hope this article useful to you. If you have some query please write below in the comment box. Wish you all the best and don't forget that you are awesome!

English Books


General Science Books


Indian History Books 


    Indian Geography


      Indian Economy


        • NCRT Macroeconomics Class 11 |  Recommended  
        • Bharoter Arthoniti - Tojammel Hossain
        • Class 11/12 books of Economy |  Recommended  
        • Bharater Arthonity by Joydeb Sarkar
        • Indian Economics by Ramesh Singh | Price Rs/- 358 | 650 pages (Link)
        • Mrunal Patel (Video) on YouTube (Link)  |  Recommended  

        Indian Polity


          Quant & Reasoning


          Current Affiars

          • Achievers Monthly Magazine For Current Affairs and Study Material |  Recommended  
          • Protijogita Dorpon Monthly Magazine |  Recommended 
          Follow any one of the above.

          Guide Books


            Additional Study Material

            • Lucent's Objective General Knowledge (Prelims & Main) (Link)
            • WBCS Preliminary Previous 10 Solved Question Paper(2010-Latest) |  Recommended  
            • WBCS Main Previous Solved 5 Question Paper(2014-Latest) |  Recommended  
            You can try our app WBCS EXAM PREPARATION APP available on the Play Store. It will help to boost your WBCS exam preparation. Buy a premium service at 55 Rs/- a month (Current Price on 22-June-2021). It will cover the previous year's questions of WBCS, SSC CGL, and selected questions from different State PSC Exam.

            WBCS Exam Preparation App






            Friday, June 18, 2021

            WBCS Polity and Constitution MCQs Prelims and Mains

            Exam Preparation of General Science (Chemistry) with PDF Notes P30


            Page 30

            90074291. Oxygen which is vital for life is a product of photosynthesis and comes from
            A
            carbonates from soil
            B
            carbon dioxide
            C
            water
            D
            oxides of mineral elements
            C
            Correct Answer: C. water
            90115292. The gas used for artificial fruit ripening of green fruit is —
            A
            Ethylene
            B
            Acetylene
            C
            Ethane
            D
            Methane
            A
            Correct Answer: A. Ethylene
            90029293. Cokking gas is a mixture of
            A
            methane and ethylene
            B
            carbon dioxide and oxygen
            C
            butane and propane
            D
            carbon monoxide and carbon dioxide
            C
            Correct Answer: C. butane and propane
            90047294. German silver is an alloy of
            A
            copper, nickel and silver
            B
            silver, copper and aluminium
            C
            zinc, copper and nickel
            D
            zinc, silver and copper
            C
            Correct Answer: C. zinc, copper and nickel
            90043295. Fermentation of milk to curd is due to
            A
            Mycobacterium
            B
            StaphylocoCcus
            C
            Lactobacillus
            D
            Yeasts
            C
            Correct Answer: C. Lactobacillus
            90176296. Which of the following imparts a deep blue color to glass?
            A
            Cobalt oxide
            B
            Cupric oxide
            C
            Ferrous oxide
            D
            Nickel oxide
            D
            Correct Answer: D. Nickel oxide
            90170297. Which metal is extracted from sea water?
            A
            Potassium
            B
            Magnesium
            C
            Aluminium
            D
            Beryllium
            B
            Correct Answer: B. Magnesium
            90054298. Helium gas is used in gas balloons instead of hydrogen gas because it is
            A
            lighter than hydrogen
            B
            more abundant than hydrogen
            C
            non-combustible
            D
            more stable
            C
            Correct Answer: C. non-combustible
            90173299. Which of the following elements is non-radioactive?
            A
            Uranium
            B
            Thorium
            C
            Plutonium
            D
            Zirconium
            D
            Correct Answer: D. Zirconium
            90145300. The tip of the match-stick contains
            A
            phosphorus pentoxide
            B
            white phosphorus
            C
            red phosphorus
            D
            phosphorus trichloride
            C
            Correct Answer: C. red phosphorus



            WBCS Polity and Constitution MCQs Prelims and Mains

            General Science MCQ PDF Download For Competitive Exam P29


            Page 29

            90184281. Which of the following is used to iodize common salt?
            A
            Potassium iodide
            B
            Iodine
            C
            Potassium iodate
            D
            Sodium iodide
            C
            Correct Answer: C. Potassium iodate
            90085282. Seaweeds are an important source of
            A
            iron
            B
            chlorine
            C
            bromine
            D
            iodine
            D
            Correct Answer: D. iodine
            90005283. Aluminium can be purified by
            A
            oxidation
            B
            distillation
            C
            electrolysis
            D
            ozonolysis
            C
            Correct Answer: C. electrolysis
            90167284. Which gas is used as a fire extinguisher ?
            A
            Carbon dioxide
            B
            Carbon monoxide
            C
            Carbon suboxide
            D
            Sulphur dioxide
            A
            Correct Answer: A. Carbon dioxide
            90126285. The metallic constituents of hard water are
            A
            Magnesium, calcium and tin
            B
            Iron, tin and calcium
            C
            Calcium, magnesium and iron
            D
            Magnesium, tin and iron
            C
            Correct Answer: C. Calcium, magnesium and iron
            90136286. The polymerisation of which of the following is used in the manufacturing of polythene in the industry?
            A
            Methane
            B
            Styrene
            C
            Acetylene
            D
            Ethylene
            D
            Correct Answer: D. Ethylene
            90150287. Vinegar made by fermentation from cane sugar contains
            A
            palmitic acid
            B
            lactic acid
            C
            citric acid
            D
            acetic acid
            D
            Correct Answer: D. acetic acid
            90075288. Ozone consists of
            A
            Oxygen only
            B
            Oxygen and Nitrogen
            C
            Hydrogen and Carbon
            D
            Oxygen and Carbon
            A
            Correct Answer: A. Oxygen only
            90010289. An atomic pile is used for
            A
            producing X-rays
            B
            conducting nuclear fission
            C
            conducting thermonuclear fusion
            D
            accelerating atoms
            B
            Correct Answer: B. conducting nuclear fission
            90183290. Which of the following is used to denature ethanol?
            A
            Methyl alcohol
            B
            Propyl alcohol
            C
            Phenol
            D
            Methane
            A
            Correct Answer: A. Methyl alcohol



            WBCS Polity and Constitution MCQs Prelims and Mains

            General Science (Chemistry) Practice Sets For Competitive Exam P28


            Page 28

            90018271. Bhopal gas tragedy is associated with leakage of
            A
            carbon dioxide
            B
            nitrogen dioxide
            C
            sulphur dioxide
            D
            methyl isocyanate
            D
            Correct Answer: D. methyl isocyanate
            90062272. Litmus is obtained from
            A
            a bacterium
            B
            a fungus
            C
            an alga
            D
            lichen
            D
            Correct Answer: D. lichen
            90039273. Dry powder fire extinguishers contain
            A
            sand
            B
            sand and sodium carbonate
            C
            sand and potassium carbonate
            D
            sand and sodium bicarbonate
            D
            Correct Answer: D. sand and sodium bicarbonate
            90053274. Helium gas is filled in ballons because
            A
            its atomic number is 2
            B
            it is lighter than air
            C
            it is one of the constituents of water
            D
            it is a noble gas
            B
            Correct Answer: B. it is lighter than air
            90021275. Brass is an alloy of
            A
            Lead and tin
            B
            Zinc and copper
            C
            Antimony, tin and lead
            D
            Zinc, tin and copper
            B
            Correct Answer: B. Zinc and copper
            90050276. Gold dissolves in
            A
            Hydrochloric acid
            B
            Nitric acid
            C
            Aqua-regia
            D
            Acetic acid
            C
            Correct Answer: C. Aqua-regia
            90160277. What is the most commonly used substance in fluorescent tubes?
            A
            Sodium oxide and argon
            B
            Sodium vapor and neon
            C
            Mercury vapor and argon
            D
            Mercury oxide and neon
            C
            Correct Answer: C. Mercury vapor and argon
            90070278. Non-stick kitchenwares are coated with
            A
            PVC
            B
            Graphite
            C
            Teflon
            D
            Silicon
            C
            Correct Answer: C. Teflon
            90129279. The most abundant inert gas in the atmosphere is
            A
            Helium
            B
            Neon
            C
            Argon
            D
            Krypton
            C
            Correct Answer: C. Argon
            90194280. Which one of the following is radioactive?
            A
            Cesium
            B
            Platinum
            C
            Strontium
            D
            Thorium
            D
            Correct Answer: D. Thorium



            WBCS Polity and Constitution MCQs Prelims and Mains

            Important MCQ on General Science Chemistry P27


            Page 27

            90151261. Vulcanization of rubber is carried out by adding
            A
            Sulphur
            B
            Carbon
            C
            Ozone
            D
            Phosphorus
            A
            Correct Answer: A. Sulphur
            90154262. What are the major pollutants of cigarette smoke?
            A
            Carbon monoxide and dioxin
            B
            Carbon monoxide and nicotine
            C
            Carbon monoxide and benzene
            D
            Dioxin and benzene
            B
            Correct Answer: B. Carbon monoxide and nicotine
            90119263. The iron ore which contains 72% of iron is
            A
            Magnetite
            B
            Limonite
            C
            Haematite
            D
            Siderite
            A
            Correct Answer: A. Magnetite
            90118264. The hardest allotrope of carbon is
            A
            diamond
            B
            graphite
            C
            coke
            D
            lamp black
            A
            Correct Answer: A. diamond
            90120265. The isotope of Uranium used in atomic reactors is
            A
            U-235
            B
            U-236
            C
            U-237
            D
            U-232
            A
            Correct Answer: A. U-235
            90032266. Denatured spirit is ethanol mixed with
            A
            Petrol
            B
            Kerosene
            C
            Water
            D
            Pyridine
            D
            Correct Answer: D. Pyridine
            90034267. Detergents clean surfaces on the principle of
            A
            viscosity
            B
            surface tension
            C
            elasticity
            D
            floatation
            B
            Correct Answer: B. surface tension
            90205268. Which variety of coal contains recognisable traces of the original plant material?
            A
            Anthracite
            B
            Lignite
            C
            Peat
            D
            Bitumen
            C
            Correct Answer: C. Peat
            90081269. Quartz is a crystalline form of
            A
            Alumina
            B
            Glass
            C
            Silica
            D
            Limestone
            C
            Correct Answer: C. Silica
            90157270. What is the chemical name of 'Baking Soda'?
            A
            Sodium carbonate
            B
            Sodium bicarbonate
            C
            Sodium nitrite
            D
            Sodium nitrate
            B
            Correct Answer: B. Sodium bicarbonate



            WBCS Polity and Constitution MCQs Prelims and Mains

            GS Practice Sets For Competitive Exam Preparation P26


            Page 26

            90114251. The Fungus which is used in the alcohol industry Is
            A
            Mushroom
            B
            Candida Aibicans
            C
            Yeast
            D
            Rhizopus
            C
            Correct Answer: C. Yeast
            90178252. Which of the following is a supercooled liquid?
            A
            Ice Cream
            B
            Teflon
            C
            Glass
            D
            Mercury
            C
            Correct Answer: C. Glass
            90045253. Galena is a mineral of
            A
            iron
            B
            gold
            C
            lead
            D
            calcium
            C
            Correct Answer: C. lead
            90038254. Drinking soda is
            A
            Alkaline
            B
            Acidic
            C
            Neutral
            D
            Oxidant
            B
            Correct Answer: B. Acidic
            90134255. The nucleus of an atom consists of.
            A
            Proton
            B
            Neutron
            C
            Proton and Neutron
            D
            Electron, Proton and Neutron
            C
            Correct Answer: C. Proton and Neutron
            90112256. The ft fundamental particles present in the nucleus of an atom are
            A
            Electron, proton
            B
            Proton, neutron
            C
            Neutron, electron
            D
            Neutron, positron
            B
            Correct Answer: B. Proton, neutron
            90127257. The metals commonly used for electroplating are
            A
            Gold, Sodium and Chromium
            B
            Chromium, Copper and Nickel
            C
            Nickel, Lead and Chromium
            D
            Gold, Sodium and Potassium
            B
            Correct Answer: B. Chromium, Copper and Nickel
            90177258. Which of the following is a mono-atomic gas?
            A
            Oxygen
            B
            Neon
            C
            Nitrogen
            D
            Fluorine
            B
            Correct Answer: B. Neon
            90122259. The main source of Naphthalene is
            A
            Charcoal
            B
            Camphor
            C
            Coal-tar
            D
            Diesel
            C
            Correct Answer: C. Coal-tar
            90017260. Aspirin is the common name of
            A
            Salicylic Acid
            B
            Salicylate
            C
            Methyl Salicylate
            D
            Acetyl Salicylic Acid
            D
            Correct Answer: D. Acetyl Salicylic Acid