131. Unit of mass velocity is
Kg/m . hr
Kg/m².hr
Kg/hr
Kg/m²
✅ The correct answer is option B.
Statiometery MCQs
132. Elements in a periodic table are arranged in order of their
Atomic number
Mass number
Atomic weight
Metallic characteristics
✅ The correct answer is option A.
133. Claussius Clapeyron equation applies to the __________ process.
Sublimation
Melting
Vaporisation
All of the above
✅ The correct answer is option D.
134. Which of the following expressions defines the Baume gravity scale for liquids lighter than water?
°Be = (140/G) – 130
°Be = 200(G-1)
°Be = 145 – (145/G)
°Be = (400/G) – 400
✅ The correct answer is option A.
135. 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H₂ produced will be __________ gm. gm.
0.5
1
3
5
✅ The correct answer is option A.
136. Colligative properties of a dilute solution are those which depend entirely upon the
Constitution of the solute
Chemical composition of the solute
Number of solute molecules contained in a given volume of the solvent
None of these
✅ The correct answer is option A.
137. Weight of 56 litres of ammonia at N.T.P. is __________ gm.
2.5
42.5
56
2800
✅ The correct answer is option B.
138. One ‘Therm’ is equivalent to
10⁵ BTU
10⁵ kcal
10⁹ BTU
10⁹ kcal
✅ The correct answer is option A.
139. A gaseous mixture contains 14 kg of N₂, 16 kg of O₂ and 17 kg of NH₃. The mole fraction of oxygen is
0.16
0.33
0.66
0.47
✅ The correct answer is option B.
140. The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
Lower than
Higher than
Same as
Not related to
✅ The correct answer is option A.