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Chemistry

Chemistry
The National Chemical Laboratory (India) is located in

Pune
Bangaluru
Hyderabad
Mumbai

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Chemistry
The elements in the modern Periodic table are arranged according to their

Atomic Weight
Neutron number
Atomic number
Mass number

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Chemistry
The length of double bond is _______ than single bond

Of same lenght
None of these
Shorter
Longer

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Chemistry
The fiber least prone to catch fire is

Nylon
Cotton
Polyester
Terylene

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Chemistry
Chemical name of bleaching powder is :

Calcium chloro hypochlorite
Calcium bi chloride
Calcium hypochlorite
Calcium chlorate

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Chemistry
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is

oxygen
ozone
helium
methane

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