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Chemistry

Chemistry
Which of the toxic heavy metals is found in modern tannery industries ?

Chromium
Zinc
Nickel
Lead

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Chemistry
Smoke is formed due to

Solid dispresed in liquid
Gas dispresed in solid
Gas dispersed in gas
Solid dispersed in gas

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Chemistry
Commercially, sodium bicarbonate is known as

Baking soda
Bleaching powder
Soda ash
Washing soda

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

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Chemistry
Taj Mahal is greatly affected due to :

Deforestation
Tourists
Acid rain
Sound pollution

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Chemistry
The gas that is used in the manufacture of vanaspati ghee is :

Nitrogen
Hydrogen
Oxygen
Carbon dioxide

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