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Chemistry

Chemistry
________ is used for making vinegar.

Oxalic acid
Malic acid
Tartaric acid
Acetic acid

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Chemistry
Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has

Smaller atomic radius
Stable half filled 2p sub level
High bond dissociation energy
High nuclear charge

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Chemistry
In the electroplating of gold, the electrolyte used is

Gold sulphate
Gold chloride
Potassium aurocyanide
Gold nitrate

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Chemistry
The acid which is secreted by the glands in the stomach wall is

Sulphuric acid
Nitric acid
Hydrochloric acid
Phosphoric acid

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Chemistry
The most pure form of Carbon among the options is

Wood Charcoal
Graphite
Anthracite
Lampblack

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Chemistry
Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?

European Union, China, USA, India
China, India, European Union, USA
USA, India, China, European Union
China, USA, European Union, India

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