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Chemistry

Chemistry
A subshell with l=2 can take up

3 electron
5 electron
10 electron
8 electron

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Chemistry
Which one of the following metals pollutes the air of a city having large number of automobiles?

Chromium
Cadmium
Copper
Lead

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Chemistry
The most important ore of lead is

Magnetite
Pyrolusite
Siderite
Galena

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Chemistry
Which amidst the following is not a gem stone ?

Topaz
Cat's-eye
Opal
Pearl

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Chemistry
24 carat of diamond is equal to

95% mg
91% gold
200 g
200 mg

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Chemistry
Which one of the following organic compounds has fruity smell?

Ether
Ester
Aldehyde
Alcohol

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