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Chemistry

Chemistry
The major constituent of gobar gas is

Isobutane
Methane
Carbon dioxide
Butane

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Chemistry
Which of the following is the maximum number of electrons that can be present in M-shell?

8
2
32
18

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Chemistry
The number of neutrons present in an element having mass number 226 and atomic number 88 is :

138
88
50
314

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Chemistry
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

Orissa coast
Travancore coast
West Bengal coast
Gujarat coast

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Chemistry
Candle is a mixture of

Bees wax and stearic acid
Paraffin was and stearic acid
Higher fatty acids and stearic acid
Bees wax and paraffin wax

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Chemistry
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?

Butane
Propane
Methane
Ethane

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