Indian School Of Philosophy Part 3

Chlorophyll is a naturally occurring chelate compound in which central metal is

Copper
magnesium
calcium
iron

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Brass gets discoloured in air because of the presence of which of the following gases in air?

Oxygen
Hydrogen sulphide
Carbon dioxide
Nitrogen

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Sodium metal is kept under

petrol
alcohol
water
kerosene

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The filament of an electric bulb is made of

tungsten
nichrome
graphite
iron

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What is laughing gas?

Nitrous Oxide
Carbon monoxide
Sulphur dioxide
Hydrogen peroxide

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Air is a/an

compound
element
electrolyte
mixture

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LPG consists of mainly

methane, ethane and hexane
ethane, hexane and nonane
methane, hexane and nonane
methane, butane and propane

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Marsh gas is

nitrogen
ethane
methane
hydrogen

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In fireworks, the green flame is produced because of

sodium
barium
mercury
potassium
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Chlorophyll is a naturally occurring chelate compound in which central metal is?

copper
magnesium
iron
calcium
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Which of the following is a non metal that remains liquid at room temperature?

1.
Phosphorous
Bromine
Chlorine
Helium
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Brass gets discolored in air because of the presence of which of the following gases in air?

Oxygen
Hydrogen sulphide
Carbon dioxide
Nitrogen
Score =
Correct answers: