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Chemistry

Chemistry
In a period from Li to F, ionisation potential

Decreases
Cannot be predicted
Increases
Remains same

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Chemistry
The mineral containing both magnesium and calcium is

magnesite
calcite
carnallite
dolomite

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Chemistry
Which one of the following is not a characteristic feature of alloys? They are

Compounds
Solutions
Mixtures
Homogeneous systems

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Chemistry
Which one of the following is also known as solution ?

A compound
A suspension
A homogeneous mixture
A heterogeneous mixture

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Chemistry
Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

All of these
CO2
O3
CO

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Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

hydrogen
nitrogen
oxygen
carbon dioxide

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