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Chemistry

Chemistry
Aerated water contains

NO2
SO2
H2
CO2

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Chemistry
The next higher homologue of C6H14 is

C7H16
C7H14
C6H12
C7H12

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Chemistry
For extinguishing fire, we use

Hydrogen
Carbon Monoxide
Carbon Dioxide
Marsh gas

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Chemistry
An alloy used in making heating elements for electric heating device is

Solder
Alloy Steel
German Silver
Nichrome

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Chemistry
The maximum number of covalent formed by nitrogen is

2
3
4
1

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Chemistry
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

Raman spectra
Absorption spectra
Emission spectra
Fluorescence

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MORE MCQ ON Chemistry

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