• A. $6.011\times {10}^{23}$
• B. $6.023\times {10}^{22}$
• C. $6.023\times {10}^{21}$
• D. $6.023\times {10}^{23}$

Answer: Option B

Explanation:

• A. $25.52kg{m}^{-3}$
• B. $25.52g{m}^{-3}$
• C. $21.15kg{m}^{-3}$
• D. $21.15g{m}^{-3}$

Answer: Option C

Explanation:

• A. $22400d{m}^3$
• B. 24.789 L
• C. 224 L
• D. 22.4 L

Answer: Option D

Explanation:

• A. হেক্স-৩-ইন-১-আইন
• B. হেক্স-১-আইন-৩-ইন
• C. হেক্সিন-১-আইন
• D. ১- হেক্সিনাইন

Answer: Option B

Explanation:

• A. $C{H}_{3}CH=CHC{H}_3\left(80\%\right)+C{H}_{3}C{H}_{2}CH=C{H}_2\left(20\%\right)$
• B. $C{H}_{3}CH=CHC{H}_3\left(20\%\right)+C{H}_{3}C{H}_{2}CH=C{H}_2\left(80\%\right)$
• C. $C{H}_{3}CH=CHC{H}_3\left(50\%\right)+C{H}_{3}C{H}_{2}CH=C{H}_2\left(50\%\right)$
• D. কোনটিই নয়

Answer: Option A

Explanation:

• A. 2.4-ডাইমিথাইল হেক্সানল-4
• B. 3.5-ডাইমিথাইল হেক্সানল-3
• C. 2-ইথাইল-5-মিথাইল পেন্টানল-2
• D. 2-বিউটাইল বিউটানল-2

Answer: Option B

Explanation:

• A. 2
• B. 3
• C. 4

Answer: Option B

Explanation:

• A. $C{H}_{2}C{H}_{2}S{O}_{2}H$
• B. $C{H}_{2}C{H}_2$
• C. $C{H}_2=C{H}_2$
• D. $C{H}_4$

Answer: Option C

Explanation:

• A. $NaHC{O}_3$
• B. $AgN{O}_3$
• C. $FeC{l}_3$
• D. $ZnC{l}_2$

Answer: Option A

Explanation:

• A. $\left[C{H}_{3}COOH\right]>\left[C{H}_{3}CO{O}^{-}\right]$
• B. $\left[C{H}_{3}COOH\right]=\left[C{H}_{3}CO{O}^{-}\right]$
• C. $\left[C{H}_{3}COOH\right]<\left[C{H}_{3}CO{O}^{-}\right]$
• D. $\left[C{H}_{3}COOH\right]\not\equiv \left[C{H}_{3}CO{O}^{-}\right]$

Answer: Option B

Explanation:

• A. 4.0
• B. 5.5
• C. 3.0
• D. 4.5

Answer: Option C

Explanation:

• A. 4
• B. 5
• C. 8
• D. 9

Answer: Option B

Explanation:

• A. C -H
• B. C = O
• C. N - H
• D. সবগুলো

Answer: Option C

Explanation:

• A. 2
• B. 4
• C. 6
• D. 8

Answer: Option B

Explanation:

• A. HCHO
• B. $C{H}_3,CHO$
• C. $C{H}_{3}COC{H}_3$
• D. $C{H}_{3}OH$

Answer: Option C

Explanation: