Q181
Open questionWhich of the following is not a noble gas ?
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Q182
Open questionMilk is a
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Q183
Open questionMixture can be
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Q184
Open questionWhich one out of the following helps in burning ?
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Q185
Open questionExcept mercury which is the other metal that is liquid at standard conditions for temperature and pressure?
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Q186
Open questionWhich among the following metals provides amphoteric oxide ?
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Q187
Open questionImpure camphor is purified by
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Q188
Open questionIron filings can be separated from a heterogeneous mixture using the technique of :
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Q189
Open questionElectric bulbs are filled with :
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Q190
Open questionThe most abundant inert gas in the atmosphere is
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Q191
Open questionWhich one of the following elements is an example of noble gas ?
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Q192
Open questionHelium gas is filled in balloons because
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Q193
Open questionThe inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is
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Q194
Open questionAt room temperature, the metal that remains liquid is:
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Q195
Open questionA metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be
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Q196
Open questionWhich of the following is very reactive and kept in kerosene?
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Q197
Open questionWhich metal does not undergo corrosion due to the formation of oxide layer?
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Q198
Open questionThe wire of flash bulb is made of:
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Q199
Open questionIdentify the metal which is non toxic in nature.
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Q200
Open questionIron rusts quickly in
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