Chemistry Mcqs

Alpha (α) particles are helium (He) nucleus with a charge of __________ ?

A. e
B. 2e
C. 3e
D. 4e

Treatment of sucrose with conc. HNO3 gives__________?

A. Nitrosucrose
B. Glucose+ fructose
C. Oxalic acid
D. Laevulinic acid

The systematic name of sucrose is_______?

A. 1-α-D- glucopyranosyl-2-β-D-fructopyranoside
B. 11-α-D-glucopyranosyl-2-β-D-fructofuranoside
C. 1-α-D- glucofuranosyl-2-α-D- fructopyranoside
D. 1-β- D- glucofuranosyl-2-α- D- fructofuranoside

How many isomeric aldoses are possible for the molecular formula C6H12O6?

A. 2
B. 4
C. 7
D.16

The IUPAC name of pyridines is__________?

A. Azolo
B. Azine
C. Azolidins
D. Diazine

The hybridization of nitrogen atom in pyridine is_______?

A. Sp
B. Sp2
C. Sp3
D. It is not hybridized

Following are the anions of soap which form Ca and Mg ions which we see as curd in waterA. Sodium hexadecanoate
B. Sodium octadecanoate
C. Sodium pentadecanoate
D. Both A & B

 

Which of the following compounds is not soluble in HNO3___?

A. CuS
B. CdS
C. PbS
D. AgCl

The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?

A. 0.065gm
B. 0.65gm
C. 6.5gm
D. 7.5gm

The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______?

A. 0.12g
B. 0.16g
C. 0.18g
D. 0.24g