Friday, February 28, 2020

WBCS Polity and Constitution MCQs Prelims and Mains

quiz for class 10 science For UPSC | SSC | Rail | RRB | State PSC P17


Chemistry - 17

81. Chemically Aspirin is :
(A) Methyl salicylate.
(B) Ethyl salicylate.
(C) Acetylsalicylic acid.
(D) Sodium salicylate

Correct Answer: [C] Acetylsalicylic acid..
Add
82. Phenyl used in household work is a derivative of
(A) Benzene
(B) Anthracene
(C) Methyl alcohol
(D) Tartaric acid

Correct Answer: [A] Benzene.
Add
83. Dry ice is made up of
(A) Hydrocarbon
(B) Carbon dioxide
(C) Water
(D) Chlorine

Correct Answer: [B] Carbon dioxide.
Add
84. The geometry of SF4 is
(A) octahedral
(B) see-saw
(C) square planar
(D) tetrahedral

Correct Answer: [B] see-saw.
Add
85. The most abundant ions in the Bay of Bengal water are
(A) Mg2+ and SO42-
(B) Fe2+ and Cl-
(C) Na+ and Cl-
(D) H+ and OH-

Correct Answer: [A] Mg2+ and SO42-.
Add


0 Comments:

Post a Comment