• A. 4.0
• B. 5.0
• C. 6.0
• D. 7.0

Answer: Option C

Explanation:

• A. $CaC{l}_2$
• B. $SrC{l}_2$
• C. $BaC{l}_2$
• D. $MgC{l}_2$

Answer: Option D

Explanation:

• A. $KB{F}_4$
• B. $N{H}_{4}Cl$
• C. $CuS{O}_{4.}5H_{2}O$
• D. উপরের সবগুলিতেই

Answer: Option D

Explanation:

• A. $r\infty \frac{1}{d}$
• B. $r\infty \frac{1}{m}$
• C. $r_2\sqrt{M_2}=r_2\sqrt{M_2}$
• D. $r_1\sqrt{M_2}=r_2\sqrt{M_1}$

Answer: Option C

Explanation:

• A. $N{H}_3$
• B. $B{F}_3$
• C. $C{H}_{3}OH$
• D. $C{H}_{3}C{H}_{2}OC{H}_{2}C{H}_3$

Answer: Option B

Explanation:

• A. $NaOH ও N{a}_{2}C{O}_3$
• B. $NaCI ও HCI$
• C. $Na{H}_{2}P{O}_4 ও N{a}_{2}HP{O}_4$
• D. $C{H}_{3}COOH ও NaOH$

Answer: Option C

Explanation:

• A.
• B.
• C.
• D.

Answer: Option C

Explanation:

• A.
• B.
• C.
• D.

Answer: Option D

Explanation:

• A. $C{H}_{3}COCI$
• B. $C{H}_{3}CON{H}_2$
• C. $C{H}_{3}COOH$
• D. $C{H}_{3}COC{H}_3$

Answer: Option D

Explanation:

• A.
• B.
• C.
• D.

Answer: Option D

Explanation:

• A. ${}_6{}^{12}C,{}_6{}^{13}C$
• B. ${}_6{}^{14}C,{}_8{}^{16}O$
• C. ${}_{29}{}^{64}Cu,{}_{30}{}^{64}Zn$
• D. ${}_6{}^{14}C,{}_7{}^{14}N$

Answer: Option B

Explanation:

• A. $\frac{25h}{\mathrm{\pi }}$
• B. $\frac{h}{\mathrm{\pi }}$
• C. $\frac{5h}{\mathrm{\pi }}$
• D. $\frac{2.5h}{\mathrm{\pi }}$

Answer: Option D

Explanation:

• A. $BeC{l}_2$
• B. $AlC{l}_3$
• C. $S{O}_2$
• D. $B{F}_2$

Answer: Option A

Explanation:

• A. $Be<B<N<O$
• B. $B<Be<N<O$
• C. $Be<B<O<N$
• D. $B<Be<O<N$

Answer: Option D

Explanation:

• A. $H_{2}O$
• B. $H_{2}S$
• C. $HF$
• D. $N{H}_3$

Answer: Option C

Explanation: