• 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: