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Chemistry

Chemistry
Which among the following is found in chlorophyll ?

Fe2+
Mg2+
A l3+
Ca2+

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Chemistry
A subshell with l=2 can take up

3 electron
8 electron
10 electron
5 electron

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Chemistry
Vinegar is an aqueous solution of

Oxalic acid
Hydrochloric acid
Citric acid
Acetic acid

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Chemistry
The main constituent of biogas is

Methyl alcohol
Oxygen
Acetic acid
Methane

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Chemistry
When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is

Hydrogen
Oxygen
All of them
Carbon dioxide

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

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

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MORE MCQ ON Chemistry

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