Stoichiometry MCQs

Option A: Torr

Option B: Newton/m2

Option C: Parsec

Option D: Ata, bar or Pascal

Correct Answer: ✔

Option A: Normal condensation

Option B: Wetting

Option C: Sum of A. and B.

Option D: Difference of A. and B.

Correct Answer: C. Sum of A. and B. ✔

Option A: 1

Option B: 9

Option C: 4

Option D: 252

Correct Answer: 9 ✔

Option A: 2

Option B: 1

Option C: 0.5

Option D: 0.05

Correct Answer: 0.5 ✔

Option A: gram

Option B: Kilogram

Option C: gm.mole

Option D: Litre

Correct Answer: gm.mole ✔

Option A: PV = RT + B/V + y/V2 + ….

Option B: (P + a/V2)(V-b) = RT

Option C: loge (p/p0) = (λ/R) (1/T0 – 1/T)

Option D: p = [RT/(V – b)] – (a/TV2)

Correct Answer: C. loge (p/p0) = (λ/R) (1/T0 – 1/T) ✔

Option A: 350

Option B: 485

Option C: 140

Option D: 345

Correct Answer: 350 ✔

Option A: 0

Option B: 1

Option C: 2

Option D: 3

Correct Answer: 2 ✔

Option A: 760 torr

Option B: 1 KPa

Option C: 10 metres of water column

Option D: 1 metre of water column

Correct Answer: 10 metres of water column ✔

Option A: 40732

Option B: 2676

Option C: 2263

Option D: 540

Correct Answer: 2263 ✔

Option A: 10-11

Option B: 10-10

Option C: 10-3

Option D: 10-4

Correct Answer: 10-11 ✔

Option A: Clapeyron’s equation

Option B: Gibb’s equation

Option C: Kopp’s rule

Option D: Trouton’s rule

Correct Answer: C. Kopp’s rule ✔

Option A: 1/2

Option B: 1/3

Option C: 1/4

Option D: 2/3

Correct Answer: 1/3 ✔

Option A: ΔH = 1 (+ ve) and Δ V = -ve

Option B: ΔH = 0

Option C: ΔV = 0

Option D: Both B. and C.

Correct Answer: D. Both B. and C. ✔

Option A: Formation

Option B: Solution

Option C: Combustion

Option D: Fusion

Correct Answer: Formation ✔

Option A: Saturated

Option B: Molar

Option C: Normal

Option D: None of these

Correct Answer: None of these ✔

Option A: 1

Option B: 8

Option C: 4

Option D: 2

Correct Answer: 4 ✔

Option A: 0°C

Option B: 0°K

Option C: 0°F

Option D: 0°R

Correct Answer: 0°K ✔

Option A: Gross feed stream/recycle feed stream

Option B: Recycle stream/fresh feed stream

Option C: Recycle stream/gross feed stream

Option D: None of these

Correct Answer: Recycle stream/fresh feed stream ✔

Option A: 80%

Option B: 90%

Option C: 95%

Option D: 98%

Correct Answer: 90% ✔

Option A: 3.01 × 1022

Option B: 6.02 × 1023

Option C: 9.03 × 1024

Option D: 1.20 × 1024

Correct Answer: 9.03 × 1024 ✔

Option A: 2

Option B: 4

Option C: 8

Option D: 16

Correct Answer: 16 ✔

Option A: Atomic weight of the metal is 4

Option B: Equivalent weight of the metal is 4

Option C: Atomic weight of the metal is 2

Option D: Equivalent weight of the metal is 8

Correct Answer: Equivalent weight of the metal is 4 ✔

Option A: Volume

Option B: Solute concentration

Option C: Temperature

Option D: None of these

Correct Answer: None of these ✔

Option A: At pressure below one atmosphere

Option B: Below the critical temperature

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: C. Both A. & B. ✔

Option A: XM < 0.5

Option B: XM = 0.5

Option C: 0.5 < XM < 0.64

Option D: XM ≥ 0.64

Correct Answer: XM ≥ 0.64 ✔

Option A: (141.5/G) – 131.5

Option B: 145 – (145/G)

Option C: 200 (G-1)

Option D: (400/G) – 400

Correct Answer: B. 145 – (145/G) ✔

Option A: Facilitates better control of the process

Option B: Improves the conversion

Option C: Increases the yield of products

Option D: None of these

Correct Answer: Facilitates better control of the process ✔

Option A: 15

Option B: 30

Option C: 85

Option D: 170

Correct Answer: 85 ✔

Option A: With chemical reaction

Option B: Without chemical reaction

Option C: Without chemical reaction & losses

Option D: None of these

Correct Answer: Without chemical reaction ✔

Option A: Thermal conductivity

Option B: Heat capacity

Option C: Viscosity

Option D: Surface tension

Correct Answer: Heat capacity ✔

Option A: 0.015

Option B: 1.5

Option C: 15

Option D: 150

Correct Answer: 0.015 ✔

Option A: 1 kcal/m2.hr.°C = 0.2048 BTU/ft2.hr. °F. = 1.163 W/m2.°K

Option B: 1 kcal/m2.hr.°K = 1.163 W/m2.°C

Option C: 1 W/m2.°C = 0.1761 BTU/ft2.hr.°F.

Option D: 1 BTU/ft2.hr.°F = 4.88 kcal/m2.hr.°C = 20.44 kJ/m2.hr°C = 5.678 W/m2.°C

Correct Answer: 1 kcal/m2.hr.°K = 1.163 W/m2.°C ✔

Option A: Accumulation

Option B: Production

Option C: Input

Option D: Generation

Correct Answer: Accumulation ✔

Option A: Heat conservation

Option B: Yield enhancement

Option C: Product enrichment

Option D: None of these

Correct Answer: Product enrichment ✔

Option A: Remain unaltered

Option B: Increase nine fold

Option C: Increase three fold

Option D: Decrease three fold

Correct Answer: Increase nine fold ✔

Option A: No change

Option B: Doubling

Option C: 1/4th reduction

Option D: Fourfold increase

Correct Answer: Doubling ✔

Option A: W/m2.°K

Option B: J/kg.°K

Option C: W/m.°K

Option D: J/m3. °K

Correct Answer: J/kg.°K ✔

Option A: 53

Option B: 5.3

Option C: 106

Option D: 10.6

Correct Answer: 106 ✔

Option A: High pressure & high temperature

Option B: Low pressure & high temperature

Option C: High pressure & low temperature

Option D: Low pressure & low temperature

Correct Answer: Low pressure & high temperature ✔

Option A: R

Option B: R/2

Option C: 2R

Option D: 3R

Correct Answer: R ✔

Option A: 0.2

Option B: 0.1

Option C: 0.4

Option D: 0.6

Correct Answer: 0.6 ✔

Option A: 0.19

Option B: 0.33

Option C: 0.40

Option D: 0.67

Correct Answer: 0.19 ✔

Option A: Increases

Option B: Decreases

Option C: Remains unchanged

Option D: Increases linearly

Correct Answer: Increases ✔

Option A: Dry bulb temperature

Option B: Wet bulb temperature

Option C: Humidity

Option D: Relative saturation

Correct Answer: Wet bulb temperature ✔

Option A: 10

Option B: 102

Option C: 103

Option D: 104

Correct Answer: 10 ✔

Option A: 17

Option B: 20

Option C: 25

Option D: 34

Correct Answer: 17 ✔

Option A: Lower than

Option B: Higher than

Option C: Same as

Option D: Not related to

Correct Answer: Lower than ✔

Option A: Enthalpy

Option B: Gibbs free energy

Option C: Internal energy

Option D: Entropy

Correct Answer: Gibbs free energy ✔

Option A: Temperature at constant humidity

Option B: Humidity at constant temperature

Option C: Temperature and the humidity

Option D: All A., B. & C.

Correct Answer: D. All A., B. & C. ✔

Option A: Increases

Option B: Decreases

Option C: Remains unchanged

Option D: Increases linearly

Correct Answer: Decreases ✔

Option A: Recycling

Option B: Purging

Option C: Bypassing

Option D: Recirculation

Correct Answer: Purging ✔

Option A: Nature

Option B: Size

Option C: Absolute temperature

Option D: All A., B. & C.

Correct Answer: Absolute temperature ✔

Option A: Pressure

Option B: Temperature

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: C. Both A. & B. ✔

Option A: 14

Option B: 2.5

Option C: 28

Option D: 1.25

Correct Answer: 2.5 ✔

Option A: 273°C

Option B: 273°K

Option C: 100°C

Option D: 200°C

Correct Answer: 273°C ✔

Option A: Less than

Option B: More than

Option C: Equal to

Option D: Either more or less; depends on the solvent

Correct Answer: Less than ✔

Option A: Lower than

Option B: Higher than

Option C: Equal to

Option D: Either A. or B.; depends on the liquids

Correct Answer: Lower than ✔

Option A: Removal of pure solvent by evaporation

Option B: Change of temperature thereby causing super-saturation

Option C: Changing the nature of the system by the addition of a more soluble material

Option D: All A., B. & C.

Correct Answer: D. All A., B. & C. ✔

Option A: 3

Option B: > 3

Option C: < 3

Option D: < 1

Correct Answer: 3 ✔

Option A: 1

Option B: 10

Option C: 100

Option D: 1000

Correct Answer: 1 ✔

Option A: Joule

Option B: Watt

Option C: Joule/Second

Option D: Both B. & C.

Correct Answer: D. Both B. & C. ✔

Option A: Stoke

Option B: Poise

Option C: gm/cm sec

Option D: Both B. & C.

Correct Answer: D. Both B. & C. ✔

Option A: Number of electrons

Option B: Oxidation number

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: Number of electrons ✔

Option A: NH3

Option B: CO2

Option C: H2S

Option D: CH4

Correct Answer: NH3 ✔

Option A: √T

Option B: T

Option C: T2

Option D: 1/√T

Correct Answer: √T ✔

Option A: Dilute

Option B: Ideal

Option C: Isotonic

Option D: Saturated

Correct Answer: Isotonic ✔

Option A: Amagat’s law

Option B: Dalton’s law

Option C: Boyle’s law & Charle’s Law

Option D: None of these

Correct Answer: C. Boyle’s law & Charle’s Law ✔

Option A: Use of equation of state

Option B: Fugacity co-efficient

Option C: Activity co-efficient

Option D: None of these

Correct Answer: Activity co-efficient ✔

Option A: Less

Option B: More

Option C: Same

Option D: Either A. or B.; depends on the nature of the substance

Correct Answer: Same ✔

Option A: Weight % of the solute

Option B: Mole fraction of the solute

Option C: Molarity

Option D: Molality

Correct Answer: Molarity ✔

Option A: Sizes of the component molecules are approximately equal

Option B: Attractive forces between like and unlike molecules are approximately equal

Option C: Component molecules are non-polar and no chemical combination or molecular association

Option D: All A., B. & C.

Correct Answer: D. All A., B. & C. ✔

Option A: C4H9OH

Option B: C3H21OH

Option C: (C2H4)2H2.OH

Option D: C2H33OH

Correct Answer: C4H9OH ✔

Option A: Vapor follows the ideal gas law

Option B: Molal latent heat of vaporisation is constant within the limited temperature range

Option C: Volume in the liquid state is negligible compared with that in the vapor state

Option D: All A., B. & C.

Correct Answer: D. All A., B. & C. ✔

Option A: °Be = (140/G) – 130

Option B: °Be = 200(G-1)

Option C: °Be = 145 – (145/G)

Option D: °Be = (400/G) – 400

Correct Answer: A. °Be = (140/G) – 130 ✔

Option A: Integral

Option B: Differential

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: C. Both A. & B. ✔

Option A: 1 BTU/ft2.hr.°F/ft = 1.488 kcal/m2. hr.°C/m

Option B: 1 BTU/ft2.hr.°F/inch = 1.488 kcal/m2. hr.°C/m

Option C: 1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m. °K

Option D: 1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F

Correct Answer: 1 BTU/ft2.hr.°F/inch = 1.488 kcal/m2. hr.°C/m ✔

Option A: m/s

Option B: cm/s

Option C: mole/m2.s.Pa

Option D: k.mole/m2.s.Pa

Correct Answer: mole/m2.s.Pa ✔

Option A: Stripping

Option B: Leaching

Option C: Differential distillation

Option D: Absorption

Correct Answer: Leaching ✔

Option A: PV = RT + B/V + y/V2 + ….

Option B: (P + a/V2)(V-b) = RT

Option C: loge (p/p0) = (λ/R) (1/T0 – 1/T)

Option D: p = [RT/(V – b)] – (a/TV2)

Correct Answer: C. loge (p/p0) = (λ/R) (1/T0 – 1/T) ✔

Option A: Polar

Option B: Non-polar

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: C. Both A. & B. ✔

Option A: 2.5

Option B: 42.5

Option C: 56

Option D: 2800

Correct Answer: 2.5 ✔

Option A: Litre

Option B: kg

Option C: gm.mole

Option D: gm

Correct Answer: kg ✔

Option A: Ideal

Option B: Non-ideal

Option C: Buffer

Option D: Colloidal

Correct Answer: Buffer ✔

Option A: Trouton’s rule

Option B: Kopp’s rule

Option C: Antoine equation

Option D: Kistyakowsky equation

Correct Answer: B. Kopp’s rule ✔

Option A: N2O4

Option B: N2O5

Option C: N2O3

Option D: None of these

Correct Answer: N2O5 ✔

A. 0
B. 1
C. 1

Correct Answer: 1 ✔

Option A: Increases

Option B: Decreases

Option C: Remains unchanged

Option D: Either A. or B.; depends on the substance

Correct Answer: Increases ✔

Option A: Brix = (400/G) – 400

Option B: Brix = 200 (G-1)

Option C: Brix = 145 – (145/G)

Option D: None of these

Correct Answer: A. Brix = (400/G) – 400 ✔

Option A: -136.5°C

Option B: – 136.5°K

Option C: -273°C

Option D: 0°K

Correct Answer: -136.5°C ✔

Option A: +816.15

Option B: +1632.3

Option C: -1632.3

Option D: -2448.45

Correct Answer: -1632.3 ✔

Option A: 3

Option B: 100

Option C: 1000

Option D: None of these

Correct Answer: 100 ✔

Option A: Formation

Option B: Combustion

Option C: Reaction

Option D: Vaporisation

Correct Answer: Combustion ✔

Option A: Nature of both the gas & the liquid

Option B: Temperature

Option C: Total pressure

Option D: None of these

Correct Answer: None of these ✔

Option A: H2O > C2H5OH > CS2

Option B: CS2 > C2H5OH > H2O

Option C: H2O > CS2 > C2H5OH

Option D: CS2 > H2O > C2H5OH

Correct Answer: H2O > C2H5OH > CS2 ✔

Option A: Water

Option B: Mercury

Option C: Carbon tetrachloride

Option D: None of these

Correct Answer: Water ✔

Option A: °R = 273 + °F

Option B: Temperature difference of 1°K = 1°C = 9/5°F

Option C: °C = (F- 32) × 0.555

Option D: °F = (°C + 17.778) × 1.8

Correct Answer: °R = 273 + °F ✔

Option A: Saturated

Option B: Unsaturated

Option C: Gaseous

Option D: Sub-cooled

Correct Answer: Gaseous ✔

Option A: 0.065

Option B: 0.65

Option C: 6.5

Option D: 65

Correct Answer: 0.65 ✔

Option A: 1026

Option B: 1023

Option C: 1020

Option D: 1019

Correct Answer: 1020 ✔