The PH of pure water at 25°C, kw=1×1-4____________?
A. 0
B. 7
C. 14
D. None of above
Submitted by :- Jamil Ahmed
The PH of Tears is __________?
A. 7.
B. 7.4
C. 7.8
D. 8.2
Submitted by :- Jamil Ahmed
The PH of milk is __________?
A. 6.
B. 6.5
C. 7.
D.7.5
Submitted by :- Jamil Ahmed
Which of the following halo alkane is hydrolyzed by SN1 mechanism?
A. CH3Br
B. CH3CH2Br
C. CH3CH2CH2Br
D. (CH3)3CBr
Submitted by :- Jamil Ahmed
The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is _________?
A. CH4
B. CO2
C. C2H4
D. Xe
Submitted by :- Jamil Ahmed
Which of the following gases shows more ideal behaviour at °C___________?
A. H2
B. He
C. CH4
D. NH3
Submitted by :- Jamil Ahmed
Azimuthal quantum number defines___________?
A. e/m ratio of an electron
B. Spin of an electron
C. Angular momentum of an electron
D. Magnetic momentum of an electron
Submitted by :- Jamil Ahmed
Magnetic quantum number specifies___________?
A. Size of orbitals
B. Shape of orbitals
C. Orientation of orbitals
D. All of the above
Submitted by :- Jamil Ahmed
Which of the following orbitals has maximum penetration effect?
A. S
B. P
C. d
D. f
Submitted by :- Jamil Ahmed
Which of the following is most soluble on water?
A. BaSO4
B. SrSO4
C. CaSO4
D. MgSO4
Submitted by :- Jamil Ahmed