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MBD PUBLICATION-SOME P-BLOCK ELEMENTS-QUESTION BANK
- Cassiterite is an ore of:
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- Graphite conducts electricity because of :
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- Which is the least pure form of carbon:
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- Carbon monoxide will reduce :
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- Tin plague is the :
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- Carbon monoxide on heating with sulphur gives :
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- Activation of charcoal :
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- Which is pseudo solid?
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- Tetrahalides of IVB group 14 elements are:
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- An example of a major air pollutant is :
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- When SnCl2 reacts with HgCl2,the product formed are :
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- Which is the hardest element ?
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- Water glass is :
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- Bell metal is an alloy of :
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- Which gas present in atmosphere darkens the surface painted by white l...
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- The chemical formula of phosgene or carbonyl chloride is :
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- The coal form containing maximum percentage of carbon is:
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- CeO2 is present in:
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- Carborundum is the commercial name of :
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- Which poisonous gas is present in the exhaust of car ?
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