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Chemistry

Chemistry
Curd is sour due to presenceof

Oxalic acid
Tartaric acid
Acetic acid
Lactic acid

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Chemistry
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

4J
2J
Infinity

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Chemistry
A fertile soil is likely to have a pH of

9
3
43989
14

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Chemistry
Diamonds are glittering and attractive because light incident on them undergoes

Multiple internal reflections
Multiple surface reflections
Hundred percent transmission
Highest refraction

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Chemistry
Catalytic converters are generally made from :

Transition metals
Hydrogen
Carbon
Alkaline metals

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Chemistry
'Plaster of Paris' is made by partial dehydration of

Green vitriol
Gypsum salt
Epsom salt
Blue vitriol

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