Chemistry 1st Paper MCQ-Cumilla Board-2022

1. Observe the following stem and answer the queationan no. 16 and 17 :

${ }_{17} A, 13 D, Y$

What kind of hybridization in $D$, take place in compounds formed by D and $A$ ?

2. What is the value of aximuthal quantum number for 4p orbital?

3. Which one is the lowest electron afinity?

4. Which one is disinfectant?

5. If $K_{p}=a^{3}$ then $a=$ ?

Where $s=$ Solubility of leas soluble sait.