What happens when NaBH₄ reacts with iodine?
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What happens during short-circuit?
When neutral wire and live wire come in contact accidentally, short circuit occurs. This causes a very heavy amount of current to pass through the circuit.
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What happens during short-circuit?
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Explain what happens to the level of water when an ice containing an iron ball melts in water?
When an ice cube with a iron ball inside floating on water melts, the level of water will decrease as per Archimedes' Principle
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A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains
(d) starch,is the correct option.
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Iodine is necessary for the synthesis of which hormone?
(b) Thyroxin
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Tincture of iodine has antiseptic properties. This solution is made by dissolving (a) iodine in potassium iodide
(d) iodine in alcohol
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What happens when a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide?
When a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide, sodium hydrogencarbonate (baking soda) and ammonium chloride is formed. NaCl + NH3 + H2O + CO2...
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While using iodine in the laboratory, some drops of iodine fell on Paheli’s socks and some fell on her teacher’s saree.
The saree of Paheli’s teacher might have been starched, and starch turns blue black with iodine solution. Paheli’s socks did not have starch on it thereby showing no change.
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Safranine should be used instead of iodine.
Suggestions II and IV are correct. Suggestion I is wrong because safranine is used to stain plant cell not to test the presence of starch. Suggestion III is wrong because transparent paper...
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Which of the following statements are correct? (i) Among halogens, radius ratio between iodine
(d) (i), (iii) and (iv)
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