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Chemistry

Chemistry
Surface water is a better source of drinking water because it is poor in

Dust
Algae
Arsenic
Bacteria

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Chemistry
Baking soda is :

Potassium carbonate
Sodium carbonate
Sodium hydroxide
Sodium bicarbonate

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Chemistry
When a spoon is to be electroplated with nickel the spoon is

Made cathode and a pure nickel red, the anode
Made anode and a pure nickel rod, the cathode
Coated with nickel sulphate and dried
Dipped in a nickel sulphate solution

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Chemistry
Ethylene is a ________ molecule.

Nonpolar
Covalent
Ionic
Polar

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Chemistry
The inexpensive and commonly used variety of glass is called soda glass.

is made using soda(sodium carbonate)
was used initially for making bottles of soda(carbonated drink)
was initially used for storing sodium carbonate
is made using soda lime

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Chemistry
What is the maximum Water Vapour content in the atmosphere?

4 to 5 per cent
2 to 3 per cent
5 to 6 per cent
3 to 4 per cent

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