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Chemistry

Chemistry
Identify the metal which is non toxic in nature.

Cobalt
Chromium
Gold
Cadmium

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Chemistry
Silver nitrate solution is kept in brown bottles in laboratory because

Brown bottles stops the passage of light through it
Brown bottles react with it
Brown bottles do not react with it
It reacts with ordinary white bottles

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Chemistry
Thermal electricity is generated by using which of these ?

Coal only
Coal, Natural Gas and Petroleum
Coal and Natural Gas only
None of these

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Chemistry
Which of the following chemicals is used in photography ?

Sodium chloride
Aluminium hydroxide
Silver bromide
Potassium nitrate

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Chemistry
Aqueous solution of which of the following is a good conductor of electricity

Glucose
Ammonium acetate
Acetic acid
Ammonia

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Chemistry
The metal used to recover copper from a solution of copper sulphate is

Ag
Hg
Fe
Na

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