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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- The product formed during the reaction between KMnO4 and conc. HCl is:
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- Fluorine does not show positive oxidation states because:
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- Bleaching powder has the molecular formula:
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- Which statement is correct:
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- Bromine is obtained on a commercial scale from:
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- Chlorine gas can be dried by passing over:
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- Which hologen can be purified by sublimation:
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- When chlorine is passes through concentrated solution KOH, the compoun...
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- Bromine gas turns starch iodine paper
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- Which is incorrect for bleaching powder:
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- Which of the following is a pseudohalogen :
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- The bleaching action of bleaching powder is due to the formation of:
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- Iodine deficiency in diet causes:
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- The oxidation of thiosulphate ion by iodine gives:
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- The solubility of iodine in water is greately increased by:
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- Iodine is formed when potassium iodide reacts with a solution of:
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- When iodine reacts with NaF, NaBr and NaCl:
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- Which compound most readily forms hydrogen bonds between its molecules...
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- Bad conductor of electricity is:
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- Fluorine is usually obtained from:
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