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Chemistry

Chemistry
Liquid Nitrogen boils at

54 kelvin
97 Kelvin
82 Kelvin
77 kelvin

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Chemistry
Carbon footprint can be reduced by

Recycling waste materials
Commuting by public transport
All of these
Using energy efficient appliances

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

Increase
May increase or decrease
Decrease
Remain the same

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Chemistry
The coordination number of body centered atom in cubic structure is

6
8
10
4

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Chemistry
The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Carbon monoxide
Ethane
Carbon di-oxide
Methane

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Chemistry
Wax used for making candle is chemically a mixture of

Cyclic hydrocarbons
Aromatic hydrocarbons
Aliphatic and aromatic hydrocarbons
Aliphatic hydrocarbons

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MORE MCQ ON Chemistry

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