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Chemistry Lecturer Jobs Test Question Answers MCQs
Q.1: NMR uses which source of radiation?
- Microwaves
- Radio waves
- Visible lightwrong
- UV
B
Q.2: Which of the following chemical is destroying the earth's protective ozone layer?
- All options
- Halons
- HCFCs
- chlorofluorocarbons (CFCs)
A
Q.3: Which of the following is an example of hexadentate ligand?
- 2, 2-bipyridine
- Ethylenediamine
- 1-10 phenanthroline
- Ethylenediamine tetra acetate ion (EDTA)
D
Q.4: According to Le Chatelier's principle; adding heat to a solid and liquid in equilibrium will cause the--?
- Amount of liquid to decrease
- Temperature to rise
- Amount of solid to decrease
- Temperature to fall
C
Q.5: The hardest natural mineral found on the earth is--?
- Coal
- Diamond
- Iron
- Graphite
B
Q.6: The molecularity of a reaction is always a------------?
- All options
- Whole number
- Rational number
- Round number
B
Q.7: Which type of reaction is: NaCl + AgNO3 → NaNO3 + AgCl ?
- acid-base reaction
- double displacement reaction
- Single displacement
- redox reaction
B
Q.8: A gas has a volume of 2 liters at S.T.P at constant pressure; at what temperature would the gas occupy a volume of 4 liters?
- 273 °C
- 546 °C
- 50 °C
- 100 °C
A
Q.9: Which gas would deviate the most from ideal behavior?
- Ne
- He
- Xe
- Kr
C
Q.10: What is the most common cause of night blindness?
- Deficiency of vitamin B
- Deficiency of vitamin D
- Deficiency of vitamin K
- Deficiency of vitamin A
D
Q.11: Which of the following gas decolorize KMnO4 solution but does not give test with ammoniacal AgNO3 solution?
- Acetylene
- Ethylene
- Ethanol
- Methane
B
Q.12: Which of the following oxides can dissolve in water to form a solution that would turn litmus paper to red?
- CO2
- K2O
- ZnO
- H2O
A
Q.13: Which of the following solution will conduct the current?
- Sugar in ethanol
- MgCl2 in water
- Iodine in ethanol
- Sugar in water
B
Q.14: What happens to the reaction rate if more reactants are added?
- rate of reaction remains constant
- rate of reaction decreases
- rate of reaction increases
- All in
C
Q.15: The energy required to separate nucleons completely into its constituent protons and neutrons is known as?
- Binding energy
- Ionization energy
- Atomic energy
- Bond energy
A
Q.16: Which of the following does not give Lassaignes test for nitrogen?
- Azobenzene
- Phenylhydrazine
- Glycine
- Urea
A
Q.17: The most common solvent used in IR Spectroscopy is--------?
- CH3CH2OH
- Alcohol
- CH30H
- CCL4
D
Q.18: Which type of reaction is: 6NaOH+3Cl2 → 5NaCl+NaClO3+3H2O ?
- Chlorine is reduced
- Disproportionation reaction
- Chlorine is oxidized
- Redox reaction
B
Q.19: Zwitter ion exists in which of the following--------?
- Alanine
- Vitamin B12
- Glycine HCL
- All options
A
Q.20: The oxidation number of P in KH2PO2 is?
- 4
- 1
- -4
- -1
B
Q.21: A catalyst increases the rate of reaction because it---?
- decreases the activation energy
- increases the activation energy
- increases the temperature
- decreases collision diameter
A
Q.22: The temperature of the system decreases in a------?
- adiabatic expansion
- isothermal expansion
- isothermal compression
- adiabatic compression
A
Q.23: What is the ratio between neutrons in C and Si with respect to atomic weight 12 and 28 respectively?
- 3:2
- 2:7
- 3:7
- 3:5
C
Q.24: Choose the correct hybridization type of benzene?
- SP
- SP2
- SP3
- SP4
B
Q.25: Which of the following compound does not give Lassaigne's test for nitrogen?
- Glycine
- Urea
- Hydrazine
- Phenyl Hydrazine
C
Q.26: Which of the following aqueous solutions can conduct electricity?
- NaCl
- Urea
- Glucose
- Sucrose
A
Q.27: Which of the following is known as marsh gas?
- CCL4
- O3
- Cl2
- CH4
D
Q.28: Why do real gases deviate from ideal gas behavior?
- All options
- intermolecular forces between molecules
- collisions aren't always elastic
- gas molecules have volume
A
Q.29: Which of the following anion is the weakest base?
- C2H5O-
- F-
- CH3COO-
- NO3-
D
Q.30: Which of the following equation is not affected by the change in pressure?
- N2+O2 → 2NO
- N2+3H2 → 2NH3
- P2O5 → P2O+O2
- 2SO2+O2 → 2SO3
A
Q.31: Which of the following organic compound is least soluble in water?
- Amines
- methane
- octane
- Carboxylic acid
C
Q.32: Which of the following is a bad conductor of electricity?
- Copper
- seawater
- Pure water
- Vinegar
C
Q.33: Enzymes belong to which of the following class of compounds----?
- Carbohydrates
- Vitamins
- Proteins
- Lipids
C
Q.34: Fats + NaOH → ------------ + Glycerol; which product is formed in this reaction?
- Fat
- Oil
- Paper
- Soap
D
Q.35: Benzene has----------pi electors?
- 4
- 2
- 8
- 6
D
Q.36: Which of the following aqueous solution is the best conductor of electricity?
- 0.1 M NaOH
- 0.1 M NH4OH
- 0.1 M HCN
- 0.1 M NH2CONH2
A
Q.37: The stability of nucleus is due to--?
- All options
- protons and neutrons
- protons and electors
- neutron and electron
B
Q.38: Who proposed the law of mass action?
- lewis and clark
- Lowry and Bronsted
- Peter Waage and Guldberg
- boyle and sorensen
C
Q.39: Which of the following catalyst is used in the hydrogenation of vegetable oil?
- iron
- nickel
- platinum
- zeolites
B
Q.40: According to Brønsted–Lowry theory bases are----?
- proton donor
- electron-pair donor
- All options
- proton accepter
D
Q.41: What is the SI unit of active mass?
- newton/m3
- joule/m3
- mol/m3
- pascal/m3
C
Q.42: According to the Lewis theory acid is----?
- electron-pair accepter
- electron-pair donor
- All options
- proton accepter
A
Q.43: What is the example of Hexadentate ligand that can form complexes with soft metal ions?
- TPEN
- Aminodiacetate ion
- Dimethylglyoxime
- 2, 2-dipyridyl
A
Q.44: According to Brønsted–Lowry theory an acid is----?
- proton donor
- electron-pair donor
- All options
- proton accepter
A
Q.45: The helical structure of a protein is stabilized by--?
- Oxygen bonds
- Hydrogen bonds
- Carbon bonds
- Helium bonds
B
Q.46: The entropy of universe is always---------?
- decreasing
- increasing
- Constant
- No change
B
Q.47: Which of the following metal has the highest electrical conductivity?
- Silver
- Gold
- Copper
- Bronze
A
Q.48: Solve the EAN value of Fe(CO)5?
- 28
- 25
- 10
- 36
D
Q.49: The pink color of phenolphthalein in alkaline medium is due to--?
- anionic form of phenolphthalein
- OH- of alkali
- acidic form of phenolphthalein
- non conjugated structure of phenolphthalein
B
Q.50: KCL in the molten state can conduct electricity because of-------?
- free ions
- free electrons
- free protons
- free nucleus
A
