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Chemistry

Chemistry
The important ore of aluminium is

Cryolite
Bauxite
Fluorspar
Haematite

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Chemistry
The formula C6H5-CO-CH3 represents

Acetic acid
Acetone
Phenyl acetate
Acetophenone

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Chemistry
The number of hydrogen bonds between guanine and cytosine in DNA is

1
3
4
2

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

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

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Chemistry
Spirit in contact with body gives cool sensation because it is :

Highly volatile
A good conductor
Transparent
Liquid

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Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

Cl2
SO2
O2
H2

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MORE MCQ ON Chemistry

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