Hello students welcome to msbte news in this article we have provided 22315 Stoichiometry Multiple Choice Questions and Answers Pdf. This Stoichiometry Mcq Questions is ideal for Students who are in Second Year of Diploma in Chemical Engineering courses. By referring Stoichiometry Mcq Pdf for Diploma you will get to know about the paper pattern of Msbte Mcq Winter 2021 exams.
with this Mcq on Stoichiometry 2nd year students can practice for their upcoming Winter 2021 exams. In this Stoichiometry Objective Questions we have selected 30 important questions from previous year papers. you can also download Stoichiometry Pdf below we have given a download link.
Table of Contents
Stoichiometry Multiple Choice Questions and Answers
Pick out the correct conversion.
(A) 1 BTU =453.6 calories
(B) 1 BTU = 252 calories
(C) 1 calorie = 252 BTU
(D) 1 calorie = 453.6 BTU
Correct!
Wrong!
2. A vapour that exists above its critical temperature is termed as a __________ vapour.
(A) Saturated
(B) Unsaturated
(C) Gaseous
(D) Sub-cooled
Correct!
Wrong!
3. Othmer chart is useful in estimating the heat of
(A) Mixing
(B) Wetting
(C) Adsorption
(D) None of these
Correct!
Wrong!
4. Pick out the wrong unit conversion of temperature.
(A) °R = 273 + °F
(B) Temperature difference of 1°K = 1°C = 9/5°F
(C) °C = (F- 32) × 0.555
(D) °F = (°C + 17.778) × 1.8
Correct!
Wrong!
5. Pick out the wrong unit conversion of heat transfer rate
6. Viscosity of 1 centipoise is equal to 1 Centistoke in case of
(A) Water
(D) None of these
(C) Carbon tetrachloride
(D) None of these
Correct!
Wrong!
7. °API gravity of water at N.T.P. is about
(A) 0
(B) 1
(C) 10
(D) 100
Correct!
Wrong!
8. Colligative properties of a dilute solution are those which depend entirely upon the
(A) Constitution of the solut
(B) Chemical composition of the solute
(C) Number of solute molecules contained in a given volume of the solvent
(D) None of these
Correct!
Wrong!
9. Which of the following is insensitive to changes in pressure?
(A) Heat of evaporation
(B) Melting point
(C) Heat of fusion
(D) Both (B) and (C)
Correct!
Wrong!
10. The heats of vaporisation of CS2, C2H5OH &H2O are 26.8, 38.6 & 40.6 KJ/kg.mole respectively. The order of decreasing intermolecular forces in these liquids is
(A) H2O > C2H5OH > CS2
(B) CS2 > C2H5OH > H2O
(C) H2O > CS2 > C2H5OH
(D) CS2 > H2O > C2H5OH
Correct!
Wrong!
11. 1 BTU/lb.←°F is equivalent to __________ kcal/kg.°C.
(A) 1
(B) 2.42
(C) 1.987
(D) 4.97
Correct!
Wrong!
12. The gravimetric (i.e., by weight) composition of a vapour saturated gas is independent of the
(A) Nature of both the gas & the liquid
(B) Temperature
(C) Total pressure
(D) None of these
Correct!
Wrong!
13. A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c.
(A) 283
(B) 566
(C) 293
(D) 141.5
Correct!
Wrong!
14. Heat of __________ of a fuel is called its calorific value.
(A) Formation
(B) Combustion
(C) Reaction
(D) Vaporisation
Correct!
Wrong!
15. Dry air is a mixture of
(A) Vapours
(B) Gases
(C) Both (A) & (B)
(D) Neither (A) nor (B)
Correct!
Wrong!
A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of
(A) 3
(B) 100
(C) 1000
(D) None of these
Correct!
Wrong!
17. An equation for calculating vapour pressure is given by, log10 P = A – B(t + c). This is called the
(A) Kistyakowsky equation
(B) Antoine equation
(C) Kopp’s rule
(D) Trouton’s rule
Correct!
Wrong!
18. The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burned in an open container, will be __________ kJ/kgmole.
(A) +816.15
(B) +1632.3
(C) -1632.3
(D) -2448.45
Correct!
Wrong!
19. The reaction A + B → C has been conducted in a reactor as shown below. The numbers of balances (material) that can be made around the reactor are
(A) 1
(B) 2
(C) 3
(D) 4
Correct!
Wrong!
20. A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be
(A) -136.5°C
(B) – 136.5°K
(C) -273°C
(D) 0°K
Correct!
Wrong!
21. With rise in temperature, the solubility of ammonia in water at a fixed pressure
(A) Increases
(B) Decreases
(C) Remains unchanged
(D) Increases exponentially
Correct!
Wrong!
22. One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as
(A) Brix = (400/G) – 400
(B) Brix = 200 (G-1)
(C) Brix = 145 – (145/G)
(D) None of these
Correct!
Wrong!
23. For an ideal solution, the total vapour pressure varies __________ with the composition (expressed as mole fraction).
(A) Inversely
(B) Exponentially
(C) Linearly
(D) Negligibly
Correct!
Wrong!
24. With rise in temperature, the heat capacity of a substance
(A) Increases
(B) Decreases
(C) Remains unchanged
(D) Either (A) or (B); depends on the substance
Correct!
Wrong!
25. The unit of specific heat at constant pressure, Cp, in SI unit is
(A) W/m2°C
(B) J/kg°K
(C) W/m°K
(D) J/m3°K
Correct!
Wrong!
26. For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to
(A) 0
(B) 1
(C) < 1
(D) > 1
Correct!
Wrong!
27. Kopp’s rule is useful for the determination of
(A) Molal heat capacities of gases
(B) Heat capacities of solids
(C) Activation energy
(D) Heat capacities of gases
Correct!
Wrong!
28. A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is
(A) N2O4
(B) N2O5
(C) N2O3
(D) None of these
Correct!
Wrong!
29. One micron is equal to __________ cm.
(A) 10-2
(B) 10-4
(C) 10-6
(D) 10-8
Correct!
Wrong!
30. The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the
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