• A. $C{H}_3-C{H}_3$
• B. $CH\equiv CH$
• C. $C{H}_2=C{H}_2$
• D. $C{H}_{3}CH=C{H}_2$

Answer: Option B

Explanation:

• A. $C{F}_{3}CI$
• B. $CC{I}_{3}F$
• C. $CC{I}_2{F}_2$
• D. $F_{2}CIC-CCI{F}_2$

Answer: Option C

Explanation:

• A. $Z{n}^{2+}/Zn$
• B. $Zn/Z{n}^{2+}$
• C. $C{u}^2/Cu$
• D. $H^{+}/H_2$

Answer: Option A

Explanation:

• A. $H_{2 }{C}_2{O}_4$
• B. $HCI$
• C. $NaOH$
• D. $KMn{O}_4$

Answer: Option A

Explanation:

• A. $PV=nRT$
• B. $PV=RT$
• C. $PV=\frac{1}{3}mN{C}^2$
• D. $P_1{V}_1=P_2{V}_2$

Answer: Option A

Explanation:

• A. $C{F}_{3}COOH$
• B. $CC{I}_{3}COOH$
• C. $CB{r}_{3}COOH$
• D. $C{I}_{3}COOH$

Answer: Option A

Explanation:

• A. $-CN$
• B. $-OC{H}_3$
• C. $-CHO$
• D. $-N{O}_2$

Answer: Option B

Explanation:

• A. $HCI$ এবং $ZnC{l}_2$
• B. $Br$ এবং $FeB{r}_3$
• C. $H_{2}S{O}_4$ এবং $HN{O}_3$
• D. $NaOH$ এবং $C{l}_2$

Answer: Option C

Explanation:

• A. $KOH$
• B. $Ba{\left(OH\right)}_2$
• C. $Pb{\left(OH\right)}_2$
• D. $LiOH$

Answer: Option C

Explanation:

• A. $R-CON{H}_2$
• B. $CR-N{H}_2$
• C. $R-COCI$
• D. $R-CO{B}_r$

Answer: Option B

Explanation:

• A. $-OH$
• B. $-C{H}_3$
• C. $-COOH$
• D. $-N{H}_2$

Answer: Option B

Explanation:

• A. $n{s}^{2}n{p}^4$
• B. $n{s}^{2}n{p}^6$
• C. $n{s}^{2}n{p}^6$
• D. $n{s}^{2}n{p}^3$

Answer: Option C

Explanation:

• A. $C{H}_{3}COCI$
• B. $Ag{\left(N{H}_3\right)}_{2}Cl$
• C. $Ca\left(OCI\right)CI$
• D. ${\left(C{H}_{3}CO\right)}_{2}O$

Answer: Option B

Explanation: