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Chemistry

Chemistry
Molality of pure water is

1.8
18
55.5
5.55

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Chemistry
In a Carbonyl group a carbon atom makes double bond with

Oxygen
Hydrogen
Carbon
None of these

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Chemistry
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

0.5 gram of molecule
5 gram of molecule
10 gram of molecule
1 gram of molecule

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HF
HBr
HI
HCI

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Chemistry
The monomers of dacron are

Ethylene glycol and terephthalic acid
Decane and decanol
Ethylene glygol and phthalic acid
Decanone and decanol

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Chemistry
What is the product formed when sodium bicarbonate is heated strongly?

Sodium Hydroxide
Sodium Monoxide
Sodium Carbonate
Sodium Peroxide

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