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BRILLIANT PUBLICATION-P-BLOCK ELEMENTS-LEVEL-II
- What may be expected to happen when phosphine gas is mixed with chlori...
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- Sulphur on boiling with NaOH solution gives
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- At room temperature, H2O is liquid while H2S is a gas. The reason is
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- Iodine is liberated when potassium iodide reacts with a solution of Z...
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- The number of P -O- P bonds in the structure of phosphorus pentoxide a...
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- A substance which gives a yellow precipitate when boiled with an exces...
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- Which one of the following statements regarding helium is incorrect?
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- Which of the following statement is wrong?
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- Conc. HNO3 stains skin and wool yellow because
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- Nitrogen reacts with calcium and carbon or when N2 gas is passed over ...
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- NH3 has pyramidal structure with HNH bond angle of 107^@. It forms com...
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- Ordinary strong solution of HCl, HNO3 and H2SO4 contains roughly
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- Dilute HNO3 cannot be concentrated beyond 68% by boiling because
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- Paris green was used as a pigment due to unique light green colour but...
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- Which one of the following halide does not hydrolyse
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- Following tests are shown by (i) Decolourisation of acidified soln....
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- PCl5 and PH3 exist but PH5 does not because
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- Holme's signals produce burning gases which serve as a signal to the a...
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- If phosphorous acid is allowed to react with excess of KOH, the produc...
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- When NH4 OH is added to copper sulphate solution, blue colour is obtai...
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