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Chemistry

Chemistry
The important metal used with iron to produce stainless steel is

Aluminium
Carbon
Tin
Chromium

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Chemistry
The maximum number of covalent formed by nitrogen is

1
2
3
4

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Chemistry
The major constituent of gobar gas is

Isobutane
Butane
Methane
Carbon dioxide

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Chemistry
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :

Generator
Power transmittor
Uninterrupted power supply (UPS)
Battery

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Chemistry
Liquid Nitrogen boils at

77 kelvin
54 kelvin
97 Kelvin
82 Kelvin

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Chemistry
What is the mass percentage of carbon in carbon dioxide (CO2)

0.158
0.323
0.273
0.201

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MORE MCQ ON Chemistry

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