• A. $C_6{H}_{5}CHBrCl$
• B. $CICH=CHCI$
• C. $C{H}_2=C{H}_2$
• D. $C{H}_3 CH\left(OH\right)COOH$

Answer: Option B

Explanation:

• A. ${\mathrm{CH}}_3$
• B. ${{\left({\mathrm{CH}}_3\right)}_2}^{+}\mathrm{CH}$
• C. ${\mathrm{H}}_2{\mathrm{C}}^{+}{\mathrm{CH}}_3$
• D. $\left({\mathrm{CH}}_3\right){\mathrm{C}}^{+}$

Answer: Option D

Explanation:

• A. $Conc.HCl+ZnC{l}_2$
• B. $Conc.H_{2}S{O}_4+ZnC{l}_2$
• C. $Conc.NaOH+ZnC{l}_2$
• D. $Conc.KOH+ZnC{l}_2$

Answer: Option A

Explanation:

• A. $C{H}_3-\underset{N{H}_2}{CH}-COOH$
• B. $\underset{N{H}_2}{C{H}_2}-COOH$
• C. $(C{H}_3{)}_{2}CH-\underset{N{H}_2}{C{H}_{}}-COOH$
• D. $C{H}_6{H}_5-C{H}_2-\underset{N{H}_2}{C{H}_{}}-COOH$

Answer: Option B

Explanation:

• A. $2.5x{10}^{18}$
• B. $3.5\times {10}^{20}$
• C. $3.5\times {10}^{22}$
• D. $3.0\times {10}^{22}$

Answer: Option D

Explanation:

• A. $(C{H}_3{)}_{3}COH$
• B. $(C{H}_3{)}_{2}CHOH$
• C. $C{H}_3\left(C{H}_2\right)OH$
• D. $C{H}_{3}C{H}_{2}OH$

Answer: Option A

Explanation:

• A. $B_{e}C{l}_2$
• B. $PC{l}_5$
• C. $BC{l}_3$
• D. $C{l}_2$

Answer: Option B

Explanation:

• A. ${\mathrm{molLs}}^{-1}$
• B. ${\mathrm{molL}}^{-1}{\mathrm{s}}^{-1}$
• C. ${\mathrm{molL}}^{-2}{\mathrm{s}}^{-1}$
• D. ${\mathrm{molL}}^{-1}\mathrm{s}$

Answer: Option B

Explanation:

• A. $\mathrm{NaOH}+\mathrm{HCl}$
• B. ${\mathrm{H}}^{+}+{\mathrm{OH}}^{-}$
• C. ${\mathrm{Na}}^{+}\left({\mathrm{H}}_2\mathrm{O}\right)+\mathrm{Cl}\left({\mathrm{H}}_2\mathrm{O}\right)$
• D. $\mathrm{NaOCl}+{\mathrm{H}}_2$

Answer: Option C

Explanation:

• A. $NaCl$
• B. $NaOH$
• C. $N{a}_{2}C{O}_3$
• D. $NaN{O}_3$

Answer: Option C

Explanation:

• A. $C{O}_2$
• B. $C$
• C. $C_x{H}_y$
• D. $CO$

Answer: Option C

Explanation:

• A. $mold{m}^{-3}$
• B. $ppm$
• C. $kj mo{l}^{-1}$
• D. $molarity$

Answer: Option C

Explanation:

• A. $3.34\times {10}^{22}$
• B. $6.023\times {10}^{23}$
• C. $2.989\times {10}^{23}$
• D. $18$

Answer: Option A

Explanation:

• A. $-CHO$
• B. $-N{O}_2$
• C. $-{\mathrm{NH}}_2$
• D. $-{\mathrm{SO}}_3\mathrm{H}$

Answer: Option C

Explanation:

• A. $H^{+}\left(aq\right)/H_2\left(g\right),Pt$
• B. $C{u}^{2+}\left(aq\right)/Cu\left(s\right)$
• C. $N{a}^{+}\left(aq\right)/Na\left(s\right)$
• D. $Pt\left(s\right)/F\left(g\right)/F^{-}\left(aq\right)$

Answer: Option C

Explanation: