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Chemistry

Chemistry
The length of double bond is _______ than single bond

Shorter
Longer
Of same lenght
None of these

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Chemistry
The alkaloid naturally found in coffee, cocoa and cola nut is

Cocaine
Tannin
Morphine
Caffeine

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Chemistry
Sodium is produced by the electrolysis of

Molten sodium chloride
Its cyanide complex
Molten sodium carbonate
Aqueous brine solution

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Chemistry
Which one is a sublime substance?

Iodine
Table salt
Sugar
Potassium Iodide

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Chemistry
Silk fibre chemically is :

Protein
Fat
Carbohydrate
Cellulose

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Chemistry
Chemical name of bleaching powder is :

Calcium chlorate
Calcium bi chloride
Calcium chloro hypochlorite
Calcium hypochlorite

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