Name the gas evolved in each of the following cases:i. Chlorine water is exposed to sunlight.
ii. Calcium carbonate is heated strongly
iii. Chlorine gas is passed through the solution of potassium iodide
iv. Dilute sulphuric acid is made to react to a sulphide salt of iron
v. Nitrogen and oxygen is heated to very high temperature​

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane