1.

On mixing an alkane with chlorine and irradiating with ultra-violet light,it forms only one mono-chloroalkane. The alkane is

Answer»

propane
pentane
iso-pentane
neo-pentane.

Solution :In chlorination of alkanes, hydrogen is replaced by chlorine, In neo-pentane, only one TYPE of hydrogen is present, HENCE REPLACEMENT of any hydrogen atom will give the same product.
`underset(" "CH_(3))underset("|")overset(" "CH_(3))overset("|")(H_(3)C-C-CH_(3))overset(Cl_(2)//UV)rarrunderset(""CH_(3))underset("|")overset(""CH_(2)Cl)overset("|")(H_(3)C-C-CH_(3))`


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