• A. $6m{s}^{-2}$
• B. $3m{s}^{-1}$
• C. $-5m{s}^{-1}$
• D. $-3m{s}^{-1}$

Answer: Option C

Explanation:

• A. v = u + at
• B. $v=u+a{t}^3$
• C. $v=4+\frac{a{t}^3}{2}$
• D. $v=4+\frac{a{t}^4}{2}$

Answer: Option B

Explanation:

• A. $40kgm{s}^{-1}$
• B. $100kgm{s}^{-1}$
• C. $4kgm{s}^{-1}$
• D. $400kgm{s}^{-1}$

Answer: Option D

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

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. আইনস্টাইন
• B. নিউটন
• C. মাদামকুরি
• D. রাদারফোর্ড

Answer: Option A

Explanation:

• A. 1m
• B. $\frac{1}{2}m$m
• C. $\frac{1}{12}m$m
• D. 18m

Answer: Option C

Explanation:

• A. $\mathrm{\beta }$
• B. $I_e$
• C. $I_E$
• D. R

Answer: Option A

Explanation: