Options:
- A. Change of bond angles
- B. Cubic structure of ice
- C. Empty space present in the structure of ice
- D. Change of bond length
View Answer
C. Empty space present in the structure of ice
Chemistry
The maximum number of electron in a sub shell with ? = 3fs______________?
Options:
- A. 6
- B. 10
- C. 14
- D. 18
View Answer
C. 14
Space around nucleus where finding probability of electrons is maximum is called ____________________?
Options:
- A. Orbital
- B. Orbit is elliptical
- C. subshell
- D. Electron cloud
View Answer
A. Orbital
Free neutron changes into proton with the emission of__________________?
Options:
- A. Neutrino
- B. Electron
- C. Both A & B
- D. Meson
View Answer
C. Both A & B
A technique of partition chromatography in which the solvent is in a pool at the bottom of container_______________?
Options:
- A. Adsorption chromatography
- B. Ascending chromatography
- C. Radial chromatography
- D. Descending chromatography
View Answer
B. Ascending chromatography
In 1
Options:
- A. sp3
- B. sp2
- C. sp2
- D. sp3
View Answer
D. sp3
Atomic radius can be determined by_________________?
Options:
- A. X
- B. Spectrophotometer
- C. Optical microscope
- D. Electron microscope
View Answer
A. X
Which one does not exhibit aldol condensation___________________?
Options:
- A. Ethanal
- B. Acetone
- C. Benzaldehyde
- D. Butanone
View Answer
C. Benzaldehyde
Which of the following can be used as anti-knocking agent ?
Options:
- A. PbCl2
- B. (C2H5)4 Pb
- C. (C2H5)2 Pb
- D. all of the above
View Answer
B. (C2H5)4 Pb
Rate of reactions of most organic compounds are____________________?
Options:
- A. very slow
- B. very fast
- C. slow
- D. no regular character present
View Answer
C. slow