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Chemistry

Chemistry
Which one out of the following helps in burning ?

Oxygen
Carbon monoxide
Nitrogen
Carbon dioxide

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Chemistry
Which of the following has the highest lattice energy

RbF
NaF
KF
CsF

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Chemistry
Helium gas is filled in ballons because

It is a noble gas
It is one of the constitutents of water
It is lighter than air
Its atomic number is 2

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Chemistry
CNG used in automobiles to check pollution, mainly consists of

CO2
H2
CH4
N2

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Chemistry
'Plaster of Paris' is made by partial dehydration of

Blue vitriol
Green vitriol
Epsom salt
Gypsum salt

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Chemistry
Gypsum is used for improvement of:

Saline soils
Acidic soils
Podsols
Alkaline soils

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MORE MCQ ON Chemistry

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