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How many following statements are correct.
a) Solid CO₂ is used in cardice
b) Solid CO₂ used as refrigerent in frozen food.
c) CO is powerful reducing agent in metallurgy.
d) Carboxy-haemoglobin is 100 times more stable than oxy-haemoglobin.
e) C-C bond length in fullerene is 138.5pm.
f) Water gas is mixture of CO & N₂

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answer is 3.

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Detailed Solution

a, b, c are correct.

Carboxy-haemoglobine is 300 times more stable than oxy-haemoglobine.

C-C bond length in fullerene is 143.5pm.

Water gas is mixture of CO & H₂.

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