Which of the following is the general formula | vedclass

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Question

(A) An alkane amide is derived from a carboxylic acid $(C_nH_{2n}O_2)$ by replacing the $-OH$ group with an $-NH_2$ group.For a saturated primary amid

Vedclass · Accepted Answer

$C_nH_{2n+1}NO$

Vedclass · Answer

(A) An alkane amide is derived from a carboxylic acid $(C_nH_{2n}O_2)$ by replacing the $-OH$ group with an $-NH_2$ group.For a saturated primary amide,the general formula is $C_nH_{2n+1}CONH_2$.Expanding this,we get $C_{n+1}H_{2n+3}NO$.However,if we consider the general formula in terms of the total number of carbon atoms $N$ (where $N = n+1$),the formula is $C_NH_{2N+1}NO$.Given the options provided,$C_nH_{2n+1}NO$ represents the general formula for a primary amide $R-CONH_2$ where $R$ is an alkyl group $C_mH_{2m+1}$ and the total carbon count is $n = m+1$.

Column $I$	Column $II$
$(A)$ $CH_3CH_2CH_2CH_2NH_2$	$(i)$ Secondary amine
$(B)$ $(CH_3CH_2)_2NH$	$(ii)$ Tertiary amine
$(C)$ $(CH_3)_3N$	$(iii)$ Aromatic amine
$(D)$ $C_6H_5NH_2$	$(iv)$ Quaternary ammonium salt
	$(v)$ Primary amine

Which of the following is the general formula of an alkane amide?

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Match the following:

Column $I$ Column $II$

$(A)$ $CH_3CH_2CH_2CH_2NH_2$ $(i)$ Secondary amine

$(B)$ $(CH_3CH_2)_2NH$ $(ii)$ Tertiary amine

$(C)$ $(CH_3)_3N$ $(iii)$ Aromatic amine

$(D)$ $C_6H_5NH_2$ $(iv)$ Quaternary ammonium salt

$(v)$ Primary amine

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