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mnsoomro
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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…
Magnetic quantum number specifies___________?
A. Size of orbitals B. Shape of orbitals C. Orientation of orbitals D. All of the above Submitted by :-…
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