Addition of Alcohols and Carboxylic Acids for Alkynes

Q. $R-\stackrel{O}{\stackrel{||}{C}-}N{H}_2+xNaOH+B{r}_2⟶R-N{H}_2+2NaBr+N{a}_{2}C{O}_3+H_{2}O$
Number of moles of $NaOH$ used in above Hoffmann bromamide reaction is:

1. 3
2. 4
3. 5
4. 6

Q. Major end product of the following sequence of reaction is:
$C{H}_{3}C{H}_{2}C{H}_{2}CON{H}_2\underset{\Delta }{\overset{Ca{\left(OH\right)}_2,C{l}_2}{\to }}X\stackrel{HN{O}_2}{\to }Z$

1. $C{H}_{3}C{H}_{2}C{H}_{2}N{H}_2$
2. $C{H}_{3}C{H}_{2}C{H}_{2}OH$
3. $C{H}_{3}C{H}_{2}C{H}_{2}COOH$
4. $C{H}_{3}C{H}_{2}COOH$

Q. $HC\equiv CH\stackrel{2C{H}_{3}MgBr}{⟶}\left(A\right)\underset{\left(ii\right)HOH/H^{\oplus }}{\overset{\left(2\right)2C{O}_2}{\to }}\left(B\right)\underset{HgS{O}_4}{\overset{H_{2}S{O}_4}{\to }}\left(C\right)\stackrel{\Delta }{\to }\left(D\right)$
If the Molecular weight of D is $xgm$, then write your answer as $\frac{x}{2}$

Q. Number of hydrogen atoms required to saturate $5$ molecules pentyne is _______.

1. $20$
2. $15$
3. $5$
4. $10$

Q. CH3COOHLiAlH4−−−−→AH+−−−→443KBBr2−−→Calc.−−−→KOHD

D is .

1. Methane
2. Acetylene
3. Alcohol

Q. $HC\equiv CH\stackrel{2C{H}_{3}MgBr}{⟶}\left(A\right)\underset{\left(ii\right)HOH/H^{\oplus }}{\overset{\left(2\right)2C{O}_2}{\to }}\left(B\right)\underset{HgS{O}_4}{\overset{H_{2}S{O}_4}{\to }}\left(C\right)\stackrel{\Delta }{\to }\left(D\right)$
If the Molecular weight of D is $xgm$, then write your answer as $\frac{x}{2}$

Q. $HC\equiv CH\stackrel{2C{H}_{3}MgBr}{⟶}\left(A\right)\underset{\left(ii\right)HOH/H^{\oplus }}{\overset{\left(2\right)2C{O}_2}{\to }}\left(B\right)\underset{HgS{O}_4}{\overset{H_{2}S{O}_4}{\to }}\left(C\right)\stackrel{\Delta }{\to }\left(D\right)$
If the Molecular weight of D is $xgm$, then write your answer as $\frac{x}{2}$

Q. CH3COOHLiAlH4−−−−→AH+−−−→443KBBr2−−→Calc.−−−→KOHD

D is .

1. Methane
2. Acetylene
3. Alcohol

Q. CH3COOHLiAlH4−−−−→AH+−−−→443KBBr2−−→Calc.−−−→KOHD

D is .

1. Methane
2. Acetylene
3. Alcohol