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Chemistry

Chemistry
Silica gel is a

Drying agent
Flavouring agent
Moisturizer
Delicious food

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Chemistry
Which of the following is used to iodise common salt ?

Iodine
Potassium iodide
Potassium iodate
Sodium iodide

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Chemistry
The unit of ionic product of water (Kw) is :

Mol-1 let-2
Mol2 let-2
Mol-1 let-1
Mol2 let-1

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Chemistry
If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is :

K1 = K2/2
K1 = K2
K1 = 2K2
K 1 = 1 /K2

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Chemistry
The acid rain destroys vegetations because it contains

Sulphuric acid
Ozone
Nitric acid
Carbon monoxide

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Chemistry
Among the following iron ores, the highest percentage of iron content is found in–

None of these
Haemetite
Magnetite
Limnonite

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