• A. নীল চাষের অর্থনীতি
• B. সমুদ্র অর্থনীতি
• C. বনজ অর্থনীতি
• D. খনিজ অর্থনীতি

Answer: Option B

Explanation:

• A. Fe
• B. $C{l}_2$
• C. $B{r}_2$
• D. $I_2$

Answer: Option C

Explanation:

• A. 6 – 10% HCOOH
• B. $6–10\%C{H}_{3}COOH$
• C. $6–10\%C_2{H}_{5}COOH$
• D. $6–10\%C_6{H}_{5}COOH$

Answer: Option B

Explanation:

• A. 4V
• B. 2V
• C. V
• D. 1V

Answer: Option C

Explanation:

• A. $C{H}_4$
• B. $C{H}_{3}Cl$
• C. NaCl
• D. $PC{l}_3$

Answer: Option C

Explanation:

• A. Low Density Lipoprotein (LDL)
• B. High Density Lipoprotein (HDL)
• C. Very Low Density Lipoprotein (VLDL)
• D. Triglyceride (TG)

Answer: Option B

Explanation:

• A. -50°
• B. -20°
• C. - 40°
• D. -10°

Answer: Option C

Explanation:

• A. 0.5 kg
• B. 1 kg
• C. 1.5 kg
• D. 2 kg

Answer: Option A

Explanation:

• A. $C{H}_4$
• B. $C_2{H}_4$
• C. $C_2{H}_2$
• D. $C_6{H}_6$

Answer: Option A

Explanation:

• A. $\overrightarrow{a}>\overrightarrow{b}$
• B. $\overrightarrow{a}=\overrightarrow{b}$
• C. $\overrightarrow{a}\perp \overrightarrow{b}$
• D. $\overrightarrow{a}\parallel \overrightarrow{b}$

Answer: Option C

Explanation:

• A. $FeC{l}_3$
• B. KCI
• C. $C{H}_{3}CI$
• D. $C_6{H}_{5}CI$

Answer: Option C

Explanation:

• A. জলীয়$AgN{O}_3$
• B. অ্যালকোহলীয় KOH
• C. জলীয়$Bac{I}_2$
• D. জলীয় NaCl

Answer: Option A

Explanation:

• A. $Ba{\left(OH\right)}_2$
• B. $Al{\left(OH\right)}_3$
• C. $C_2{H}_{5}OH$
• D. $C_6{H}_{5}OH$

Answer: Option A

Explanation:

• A. বুধ
• B. শুক্র
• C. মঙ্গল
• D. শনি

Answer: Option B

Explanation:

• A. কাঁচা লৌহ
• B. ইস্পাত
• C. অ্যালুমিনিয়াম
• D. কোবাল্ট

Answer: Option C

Explanation: