1. Which of the following is intermolecular force of attraction?

a) Ionic bond b) Covalent bond c) Electrovalent bond d) Molecular bond

2. which of the following is strongest bond?

a) Covalent bond b) Co-ordinate bond c) Electrovalent bond d) Ionic bond

a) only a b) Both B & D c) Only C d) Both C & D

3. Which of the following molecule do not follow octet rule?

a) Nitric Acid b) Hydrogen sulfide(H2S) c) Phosphane(PH3) d) Phosphorous Pentachloride(PCl5)

4. Metallic bonding is present in…

a) H2 b) Fe c) Ca d) O2

a) Only a & d b) Only B c) Only C d) both B & C

5. Which of the following molecules does not follow the octet rule?

a) Water(H2O) b) Ammonia(NH3) c) Methane(CH4) d) Borane(BH3)

6. Which of the following generally highest density for the same matter?

a) Solid b) Liquid c) Gas d) all of these

7. The symbolical representation for Tungsten is…

a) Tu b) Th c) Wh d) Tg

a) Only A b) Only D c) Both C & D d) None of these

8. Fractional distillation method is based on difference in …

a) M. P. b) B. P. c) Solubility d) None of these

9. which of the following set would increase the temperature?

a) Diffusion, Evaporation, Compression of gas

b) Evaporation, Solubility, Compression of gas

c) Expansion of gas, Diffusion, Evaporation

d) all of these

10. Which of the following has highest unpaired electrons?

a) Zn+ b) Fe2+ c) Ni3+ d) Cu+

11. Identify the species which have three unpaired electrons.

a) Cr2+ b) P c) Cr3+ d) Ar

a) Only b b) Only a c) both C & D d) Both A & B

12. The halogen that most easily reduced is…

a) F b) Cl c) Br d) I

13. Newland’s Law of Octave applies to which of the following set of elements?

a) be, Mg, Ca b) As, K, Ca c) B, N , C d) all of these

14. Anything that influences the valence electrons will affect the chemistry of element. Which one of the following factors does not affect the valence shell?

a) valence Principal quantum number b) Nuclear charge c) Nuclear mass d) Number of electron

15. The oxidation number of Phosporus in P4 is…

a) 0 b) 1 c) 2 d) 4

16. The oxidation number of Platinum in [Pt(C2H4C3)]- is…

a) +1 b) +2 c) +3 d) +4

17. a one mole of compound contains one mole of carbon and two moles of oxygen, the molar mass of that compound is…

a) 32 b) 44 c) 56 d) 16

18. The number of molecules in 44 gm of CO2 is the same as the number of molecules in…

a) 18 h of oxygen b) 14 g of Nitrogen c) 28 g of Nitrogen d) 16  g of Oxygen

19. the pressure of real gas is less than the pressure of an ideal gas because of…

a) increase in collision b) increase in intermolecular forces c) infinite size of molecules d) statement is not correct

20.  Molarity of s solution containing 1 g of NaOH in 250 mL of its solution is…

a) 0.1 b) 1 c) 0.01 d) 0.001

21. Which solution changes red litmus to blue

a) NaCl(aq) b) LiCl(aq) c) CJ3OH d) KOH(aq)

22. Which is not correct pair among the following?

a) Sodium Carbonate – Washing Soda b) Sodium Chloride – Common Salt

c) Calcium Carbonate – Slaked Lime d) Sodium Hydroxide – Caustic Soda

23. During electrolysis, the electrons are…

a) gained b) lost c) lost by anion & gain by cation d) gained by cation & lost by anion

24. When water is electrolysed, the gas collected at cathode is…

a) Oxygen b) Sulphur c) Sulphur dioxide d) Hydrogen

25. In electrolytic cell, cathode acts as an

a) oxidizing agent b) reducing agent c) both A & B d) none of these