Chemistry MCQs

A. this acid, in ancient times, was used to eliminate ant-hills

B. this corrosive acid is secreted by ants to drive away their enemies

C. this acid was first obtained by the distillation of ants

D. ants are attracted by the odour of this acid

A. carbon

B. hydrogen

C. oxygen

D. nitrogen

A. Ca

B. Na

C. K

D. Mg

A. magnesite

B. calcite

C. carnallite

D. dolomite

A. n2

B. n

C. n-2

D. n3

A. alcohol

B. carbon dioxide

C. chlorine

D. sodium chlorine

A. 4

B. 5

C. 2

D. zero

A. react with U to release energy

B. produce neutrons

C. undergo combustion which triggers the nuclear fission

D. convert fast moving neutrons into thermal neutrons

A. bauxite

B. magnetite

C. haematite

D. monazite

A. was used initially for making bottles of soda(carbonated drink)

B. is made using soda(sodium carbonate)

C. was initially used for storing sodium carbonate

D. is made using soda lime