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Chemistry

Chemistry
1 carat of diamond is equal to

200 g
100 mg
200 mg
100 g

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Chemistry
Sour taste of ‘Coca Cola’ is due to the presence of

Acetic acid
Formic acid
Phosphoric acid
Hydrochloric acid

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Chemistry
Hard steel contains

2 to 5 per cent carbon
0.1 to 0.4 per cent carbon
0.01 to 0.04 per cent carbon
0.5 to 1.5 per cent carbon

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Chemistry
Which of the following has no unit

Electronegativity
Excitation potential
Ionization energy
Electron affinity

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Chemistry
The advantage of detergents over soaps is

Detergents give lather even with hard water
Soaps give lather with only soft water
Detergents are soluble in water
Detergents could not give much lather

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Chemistry
Basicity of boric acid, H3BO3 is

3
5
4
2

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