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Chemistry

Chemistry
The formula C6H5-CO-CH3 represents

Phenyl acetate
Acetophenone
Acetone
Acetic acid

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Chemistry
When ice cubes are made, the entropy of water

Increases
May either increase or decrease depending on the process used
Does not change
Decreases

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Chemistry
Which of the following is used as filler in tyre of rubber ?

Carbon black
Graphite
Coke
Coal

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Chemistry
The most abundant rare gas in the atmosphere is

He
Ne
Ar
Xe

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Chemistry
The maximum number of isomers for an alkene with molecular formula C4H8 is

2
3
4
5

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

3.05 gram
2.05 gram
5.05 gram
4.05 gram

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