Chemistry 1st Paper MCQ-Dhaka Board-2023

1. Which one is needed for the growth of micro organisms?

2. $\left.\mathrm{P}_{2}(\mathrm{~g})+\mathrm{Q}_{2}\right)(\mathrm{g}) \rightleftharpoons 2 \mathrm{PQ}(\mathrm{g}) \cdot \Delta \mathrm{H}=+\mathrm{YKJ}$

What is the effect of pressure on stem reaction?

3. What is the $\mathrm{P}^{\mathrm{OH}}$ of $0.05 \mathrm~{MH}_{2} \mathrm{SO}_{4}$ ?

4. Which one is most significant principle in green chemistry?

5. $\left.\mathrm{P}_{2}(\mathrm{~g})+\mathrm{Q}_{2}\right)(\mathrm{g}) \rightleftharpoons 2 \mathrm{PQ}(\mathrm{g}) \cdot \Delta \mathrm{H}=+\mathrm{YKJ}$

Which one is the relation between Kp and Kc for stem reaction?