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Chemistry

Chemistry
The unit of ionic product of water (Kw) is :

Mol-1 let-2
Mol2 let-2
Mol2 let-1
Mol-1 let-1

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Chemistry
Which of the following alloy is used in making magnet ?

Alnico
Magnalium
Stainless steel
Duralumin

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Chemistry
Which one of the following is commonly used for pulp bleaching in the paper industry?

Hydrogen peroxide
Mild sulphuric acid
Iodine and water
Glucose isomerase

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Chemistry
Nitrogen forms a variety of compounds in all oxidation states ranging from

–3 to + 3
–3 to + 6
–3 to + 5
–3 to + 4

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Chemistry
Which of the following is the strongest base in aqueous solution ?

Diethylamine
Ethylamine
Ammonia
Triethylamine

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Chemistry
Which one of the following contributes largely to the ‘green house effect’ ?

Water vapour
Carbon monoxide
Ozone
Carbon dioxide

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