Chemistry Quiz Questions and Answers - 2

Question: 6

The pH of soft drink is

(A) 3.0

(B) 3.8

(C) 6.5

(D) 8.5

Question: 7

pH of 0.1 M HCL would be

(A) 0

(B) 1

(C) -1

(D) 13

Question: 8

The oxide ore is concentrated by

(A) Calcinations

(B) Gravity separation

(C) Froth floatation

(D) Electromagnetic separation

Question: 9

The colour of ferrous hydroxide precipitate is

(A) White

(B) Dirty green

(C) Blue

(D) Brown

Question: 10

Which one of the following reaction takes place when carboxylic acid is heated with soda lime?

(A) Dehydrogenation

(B) Dehydration

(C) Decarboxylation

(D) Oxidation