1. Which of the following deals with electrical and chemical energy interconversion?
- (a) Chemistry
- (b) physical chemistry
- (c) Electrochemistry
- (d) inorganic chemistry
2. What is the oxidation number of nitrogen N2?
- (a) +1
- (b) +3
- (c) 0
- (d) -3
3. Which of the following is the oxidation number of C in CH3OH?
- (a) -2
- (b) -1
- (c) 0
- (d) +1
4. Is a cation?
- (a) Neutral
- (b) negative charged
- (b) positive charge
- (d) no charge
5. Electrons are lost by the?
- (a) Reducing agent as it undergoes oxidation
- (b) Reducing agent as it undergoes reduction
- (c) Oxidizing agent as it undergoes oxidation
- (d) Oxidizing agent as it undergoes reduction
6. What statement is TRUE for an electrochemical cell?
- (a) Oxidation occurs at the anode only
- (b) Reduction occurs at the anode only
- (c) Oxidation occurs at both the anode and cathode
- (d) Reduction occurs at both the anode and cathode
7. What happens to the reducing agent in an oxidation—reduction reaction?
- (a) It is oxidized as it gains electrons
- (b) It is oxidized as it loses electrons
- (c) It is reduced as it gains electrons
- (d) It is reduced as it loses electrons
8. In an electrochemical cell, which direction do electrons travel?
- (a) From the anode to the cathode through the external cir
- (b) From the anode to the cathode through the salt bridge
- (c) From the cathode to the anode through the external circuit
- (d) From the cathode to the anode through the salt bridge
9. What are the elements of the IA group, except hydrogen, called?
- (a) Alkali metals
- (b) earth metals
- (b) Both of these
- (d) none of these
10. Does the name platinum (pt) come from the?
- (a) Greek
- (b) Latin
- (d) English
- (b) Spanish
11. An element “M” forms hydride NH3, which contain 90% of “M” by mass. Relative Atomic mass of M is:
- A) 27
- B) 30
- C) 87
- D) 90
12. What mass of CO2 is formed when 16g of CH4 reacts with 48g of O2?
- A) 44g
- B) 33g
- C) 16g
- D) 24g
13. Equation not obeyed by the ideal gases:
- A) PV = nRT
- B) =
- C) PV =1/3mNC̅2
- D) (P + )(V- nb) = nRT
14. The compressibility factor o a gas is less than unity at STP, hence:
- A) Vm>22.4 dm3
- B) Vm<22.4 dm3
- C) Vm>33.4 dm3
- D) Vm>44.4 dm3
15. Which of the following color of visible spectrum has longest wave length?
- A) Blue
- B) Indigo
- C) Yellow
- D) Orange
16. Which of the following set of quantum numbers is possible?
- A) n = 3, 1 = 2, m = 1, s = 0
- B) n = 3, 1 = 0, m = 0, s =0
- C) n = 1, 1 = 2, m = 2, s = ½
- D) n = 1, 1 = 0, m = 2, s = ½
17. Electronic configuration gallium is [Ar] 3d10, 4s2, 4p1. What is the correct of electron loss by Ga to form Ga+4 ions?
- A) 3d, 4p, 4S, 4S
- B) 3d, 4S, 4S, 4p
- C) 4S, 4S, 4P,3d
- D) 4P, 4S, 4S, 3d
18. Which molecules is planner among the following?
- A) BCI3
- B) Nh3
- C) NF3
- D) SO2CI2
19. Enthalpy change is independent of intermediate paths but it depends upon initial and final states of system, this is called?
- A) first law of thermodynamics
- B) 2nd law of thermodynamics
- C) First law of thermo chemistry
- D) 2nd law of thermo chemistry
20. A solution contains one mole of water and three moles of ethanol, mole fraction of water an alcohol is:
- A) 4/1, 4/3
- B) 1/4, 3/4
- C) 4/1, 4/3
- D) 1/4, 1/3
21. Which statement is incorrect about standard Hydrogen electrode (S.H.E)?
- A) its oxidation potential and reduction potential is zero
- B) It is made up of Pt wire dipped in HCI solution.
- C) Reduction potential of Cu+2 is less than S.H.E when both are coupled.
- D) H2 gas is passed at 1 atm pressure
22. For a reversible reaction, if the concentration of the reactants is increased at constant temperature then the value of Kc:
- A) Increase
- B) Decrease
- C) Remains same
- D) May increase or decrease
23. When air is passed through the water then its PH drops from 07 to 06, gas responsible for this change may be?
- A) Ar
- B) Co2
- C) O2
- D) N2
24. Units of rate constant, K for a reaction is mol-1dm3s-1, order is?
- A) One
- B) Two
- C) Three
- D) Zero
25. Half life of a reaction is doubled by doubling the concentration of reactant, order of reaction is:
- A) One
- B) Two
- C) Three
- D) Zero
| Test 1 | Test 2 | Test 3 | Test 4 | Test 5 |
| Test 6 | Test 7 | Test 8 | Test 9 | Test 10 |
