Urea as a fertilizer contains::
A. 57% N
B. 73% N
C. 46% N
D. 53% N
Which molecule have stronger London dispersion forces?
A. Hydrogen gas
B. Water
C. Bromine
D. Hydrochloric acid
The concept of ensemble was introduced by:
A. Boltzmann
B. Gibbs
C. Carnot
D. Mexwell
Phonon is Quantum of:
A. Longitudinal wave
B. Elastic wave
C. Transverse wave
D. Electromagnetic wave
Which gas is used for artificial ripening of green fruit ?
A. Carbon dioxide
B. Acetylene
C. Ethane
D. Ethylene
Barret exophages is good example of:
A. Atrophy
B. Dysplasia
C. Metaplasia
D. Hypertrophy
E. Hyperplasia
Which of the following is solid?
A. Water
B. Stone
C. Both
D. None
The number of ions produced by [Pt(NH3)]Cl2?
A. 4
B. 2
C. 3
D. 5
The practical problem in Hydrogen production is it:
A. Weight
B. Valency
C. Size
D. Chemical property
Radiations are harmful as it:
A. Causes skin cancer
B. Causes anemia
C. Alters body tissue
D. is unstable
