Biogas produced as a result of anaerobic decay of organic matter consist primarily of __________ gases...? Mcqs

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Biogas produced as a result of anaerobic decay of organic matter consist primarily of __________ gases...?

(i) N₂ & SO2
(ii) NH3 & CO2

(iii) O2 & N₂
(iv) None of these

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Ascorbic acid is...?

(i) Vitamin A
(ii) Vitamin C

(iii) Vitamin D
(iv) non of these

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Bio gas is the common name of...?

(i) Methane (CH₄)
(ii) Hydrogen gas

(iii) Nitrogen gas
(iv) Oxygen gas

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Which gas is used in fire extinguisher...?

(i) Nitrogen
(ii) Carbon Dioxide

(iii) Oxygen
(iv) Nitrogen

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Which of the following gases is used for refrigeration...?

(i) Chlorine
(ii) Ammonia

(iii) Phosphine
(iv) Carbon Dioxide

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Chemical formula of baking soda is ______...?

(i) Na2CO3
(ii) K2CIO3

(iii) Na2SO4
(iv) NaHCO3

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Which planet revolves in Clockwise rotation around sun and seen from earth?...?

(i) Jupiter
(ii) Venus

(iii) Mars
(iv) None of these

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Cooking gas is mixture of which of the following two gases...?

(i) Methane & Carbon dioxide
(ii) Oxygen & Nitrogen

(iii) Butane & Propane
(iv) Oxygen & Methane

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splitting of water into hydrogen and oxygen is an example of ______...?

(i) Evaporation
(ii) Condensation

(iii) Decomposition
(iv) Sublimation

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

(i) Calcium Sulphate
(ii) Calcium Carbonate

(iii) Sulphur Dioxide
(iv) None of these

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