Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Which of the following gases is mixed with oxygen for breathing by divers in aqualungs?
a. Methane
b. Nitrogen
c. Helium
d. Hydrogen
Q. The material known in commerce as Terylene is a –
a. Synthetic fibre
b. Natural fibre
c. Modified natural fibre
d. Blend of cotton and silk
Q. Among the fuels given below, the one with highest calorific value is –
a. Coke
b. Coal
c. Wood
d. Natural gas
Q. Which of the following metals are present in hemoglobin and chlorophyll, respectively?
a. Fe and Mg
b. Fe and Zn
c. Mg and Zn
d. Zn and Mg
Q. Silver halides are used in photographic plates because they are -
a. oxidised in air
b. soluble in hyposolution
c. reduced by light
d. totally colourless
Q. Tetra ethyle lead (TEL) is -
a. a catalyst in burning fossil fuel
b. an antioxidant
c. areductant
d. an antiknock compound
Q. The term PVC used in the plastic industry stands for -
a. polyvinyl chloride
b. polyvinyl carbonate
c. phosphor vanadium chloride
d. phosphavinyl chloride
Q. German silver used for making utensils is an alloy of –
a. Copper, silver, nickel
b. Copper, zinc, nickel
c. copper, zinc, aluminium
d. copper, nickel, aluminium
Q. The acid used in lead storage cells is –
a. phosphoric acid
b. hydrochloric acid
c. nitric acid
d. sulphuric acid