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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
- Write two important ores of aluminium.
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- Discuss the principle of extraction of aluminium from one of its chief...
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- Write two important ores of iron.
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- Give the principle of extraction of iron from one of its ore.
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- The correct order of bond dissociation energy of halogens is .
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- In which reaction ozone acts as reductant ?
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- Oxygen and Ozone are .
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- The shape and hybridisation of XeF4 is
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- The number of P-O-P bonds in phosphorous pentoxide (P4O10) are
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- Which noble gas is called as stranger gas?
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- P4 molecule has tetrahedral structure. The anglep-p-p bond angle is
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- Write the product formed when ammonia reacts with excess of chlorine.
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- What is composition of Oleum ?
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- The inert gas used in beacon lights is
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- Name the catalyst used in the contact process of manufacture of H2SO4
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- The most abundant noble gas present in the atmosphere is .
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- Sodium chloride on heating with H2SO4 in presence of MnO2 produce gas...
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- What is the bond angle in SO2 molecule ?
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- Arrange the halogen acids in increasing order of their acidic strength...
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- What happens when phosphorous acid is heated ?
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