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Chemistry

Chemistry
The hydronium ion is

H+
HO -
H3O+
H2+

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Chemistry
When a bond is formed between two atoms, the energy of the system will

May increase or decrease
Increase
Decrease
Remain the same

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Chemistry
The major harmful gas emitted by automobile vehicle which causes air pollution is

Carbon Monoxide
Methane
Ozone gas
Carbon dioxide

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Chemistry
Antacids are found in drugs that give relief to

Headache
Acne
Stomach ache
Eye sight

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Chemistry
Cement is formed by strongly heating a mixture of

Limestone and graphite
Limestone and clay
Clay and graphite
Chalk and graphite

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

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

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MORE MCQ ON Chemistry

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