Pi bonds are produced by overlapping of__________________?
A. Un-hybrid orbitals
B. Hybrid orbitals
C. Hybrid and un hybrid orbitals
D. atomic orbital and hybrid orbital
Submitted by :- Jamil Ahmed
Bond will be ionic when E.N difference of bonded atom is _________?
A. Equal to 1.7
B. Greater than 1.7
C. Less than 1.7
D. No specificity exists
Submitted by :- Jamil Ahmed
Glass electrode cannot be used to measure the pH of pure
-
- Acetic acid
- Ethyl alcohol
- Gelatin
- All of A, B, and C
Submitted by :- Muhammad Nawaz
Buffer solution are used to
-
- Increase the pH
- Decrease the pH
- Resist the pH
- None of A, B, and C
Submitted by :- Muhammad Nawaz
The sum of pH and pOH is equal to ___ .
-
- 10
- 12
- 14
- 7
Submitted by :- Muhammad Nawaz
The value of Kw increases with temperature due to the ionization of water _______ .
- Decreases
- Remains constant
- Increases
- None of A, B, and C
Submitted by :- Muhammad Nawaz
What is the ionic product equilibrium constant?
- Ka
- Kb
- Kc
- Kw
Submitted by :- Muhammad Nawaz
What is the relative order of acidity of oxy acid?
- HCIO > HCIO2 > HCIO3 > HCIO4
- HCIO4 > HCIO3 > HCIO₂ > HCIO
- HCIO3 > HCIO2 > HCIO > HCIO4
- HCIO2 > HCIO4 > HCIO3 > HCIO
Submitted by :- Muhammad Nawaz
According to _____, “Acids are substances whose aqueous solutions turned blue litmus red and tasted sour”.
-
- Davy
- Liebig
- Rouelle
- Boyle
Submitted by :- Muhammad Nawaz
Bases and reducing agents are electron-giving agents and known as ___?
-
- Nucleophile
- Electrophile
- Electrodative
- None of A, B, and C
Submitted by :- Muhammad Nawaz