Which gas is used in refrigerators for cooling...? Mcqs

Latest MCQs

Which gas is used in refrigerators for cooling...?

(i) Chlorofluorocarbon
(ii) Nitrogen

(iii) Helium
(iv) Tetrafluoroethene

Latest MCQs

A chemical solution has 8% acid the acid is 15 ml the total volume of solution is...?

(i) 179.5 ml
(ii) 180.5 ml

(iii) 187.5 ml
(iv) None of these

Latest MCQs

The Third Most abundant element is:...?

(i) Oxygen
(ii) Silicon

(iii) Aluminium
(iv) None ofthese

Latest MCQs

It is not advisable to sleep under a tree at night because of the release of:...?

(i) more oxygen
(ii) less oxygen

(iii) Carbon dioxide
(iv) Carbon monoxide

Latest MCQs

Bio gas is the common name of...?

(i) Methane (CH₄)
(ii) Hydrogen gas

(iii) Nitrogen gas
(iv) Oxygen gas

Latest MCQs

Exoskeleton of a marine snail is composed of...?

(i) Calcium Sulphate
(ii) Calcium Carbonate

(iii) Sulphur Dioxide
(iv) None of these

Latest MCQs

The most brightest planet is ______...?

(i) Sun
(ii) Mercury

(iii) Venus
(iv) None of these

Latest MCQs

Which of the following is not a chemical reaction...?

(i) Burning of a paper
(ii) Conversion of Water into stream

(iii) Digestion of food
(iv) Burning of coal

Latest MCQs

Vaccination was discovered by...?

(i) Galileo
(ii) Edward Jenner

(iii) Baird
(iv) Roentgen

Latest MCQs

Which gas is used to make soda water...?

(i) Ammonia
(ii) Hydrogen

(iii) Nitrogen
(iv) Carbon Dioxide

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