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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- Vortex rings in air are formed by:
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- NaOH can absorb:
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- Which sulphide is insoluble in yellow ammonium sulphide ?
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- Which statement is not correct ?
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- Hydrolysis of PI3 yields:
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- In smoke screens calcium phosphide is used, because it:
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- The oxidation state of nitrogen in NH4NO3 is:
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- The N-H bond in NH3 is:
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- Oxidation of ammonia by CuO yields:
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- Which of the following statements is not true ?
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- Which reaction can be used to prepare phosphoric acid ?
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- Metal among the following is:
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- PCl3 reacts with organic compounds containinggroup.
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- Ammonia water is a good cleaning agent because it:
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- Which is correct statement ?
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- The number of pi- bonds present in NCl3 is:
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- Which is used to remove N2 from air:
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- In PCl5 molecule, P is :
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- Pure N2 can be obtained by:.
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- Liquor ammonia is:
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