set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

What is the reason for white cement to be white?

a) It does not contain iron

b) It does not contain silicon

c) It does not contain carbon

d) It does not contain calcium

Question : 2

Scurvy is caused due to the deficiency of vitamin

a) K

b) C

c) B1

d) A

Question : 3

Alkaline hydrolysis of esters is known as

a) dehydration

b) saponification

c) esterification

d) alkalination

Question : 4

Which substance is used to retard the setting action of cement?

a) CaSO₄ , 2H₂O

b) Al₂O₃

c) CaO

d) Na₂O + K₂O

Question : 5

Soft soaps are

a) potassium salt of fatty acids

b) sodium salt of fatty acids

c) sodium and potassium salt

d) potassium salt of sulphonic acids

Question : 6

Which one of the following is not contained in portland cement ?

a) Ca₂ SiO₄

b) Ca₃ SiO₅

c) Ca₃Al₂O₆

d) Ca₃ (PO₄)₂