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Chemistry

Chemistry
Isobars are lines joining places having equal

Height above sea-level
Population
Rainfall
Pressure

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Chemistry
Gobar gas mainly contains

Carbon monoxide
Hydrogen sulphide
Carbon dioxide
Methane

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Chemistry
The chemical used in embalming biological materials is

Formaldehyde in methanol
Gaseous formaldehyde
Formaldehyde in water
Ethylene glycol

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Chemistry
Which substance is used to retard the setting action of cement?

CaSO4, 2H2O
Al2O3
CaO
Na2O + K2O

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Chemistry
The most electronegative element among the following is

fluorine
bromine
sodium
oxygen

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Chemistry
The National Chemical Laboratory is situated in

New Delhi
Patna
Bangalore
Pune

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