KMU CAT Chemistry Entry Test MCQs Pdf Notes

Chemistry important MCQs for KMU CAT Test, most repeated and widely used questions in past test series.

Online Preparation test MCQs

1. The solution which resists change in its pH either an acid or base is added in it is called:
(A) Buffer solution (B) Acid (C) Base (D) Alkali
2. An excess of silver nitrate in aqueous form is added to aqueous barium chloride and the precipitate is removed by filtration. What are
main ions in the filtrate:
(A) Ag and NO only + -3

(B) Ag+ and Ba2+ and NO3

(C) Ba and NO only 2+ -3

(D) Ba and NO and Cl 2+ -3
–
3. For which system does the equilibrium constant Kc has units of (concentration)?
-1
(A) N2 + 3H2 ⇌ 2NH3
(B) H2 + I2 ⇌ 2HI
(C) 2NO2 ⇌ N2O4
(D) 2HF ⇌ H2 + F2
4. Molarity of pure water is:
(A) 1 (B) 55.5 (C) 18 (D) 16
5. Upper-consulate temperature for water – phenol system is:
(A) 150 C
o
(B) 65.9 C
(C) 120 C
(D) 130 C
6. The correct equation of Raoult’s law:
(A) = X2Δp/Po (B) = X1Δp/Po

(C) = X2Po/Δp
(D) = X2 − X1Po/Δp
7. Mathematical expression of Raoult’s law is:
(A) p ∝ x1
(B) Δp ∝ x2
(C) = x2Δp/Po

(D) All of these
8. A solution of glucose is 10% w/v. The volume in which 1 g mole of it is dissolved will be?
(A) 1 dm3
(B) 1.8 dm3
(C) 200 cm3
(D) 900 cm3
9. Melting of ice can be lowered by the use of:
(A) LiCl (B) BeCl2 (C) NaCl (D) AgCl
10. Relative lowering of vapor pressure is equal to:
(A) Mole fraction of solute (B) Mole fraction of solvent (C) Molarity (D) Molality

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11. Azeotropic mixture of two liquids boils at a lower temperature than either of them, when:
(A) It is saturated (B) It shows a positive deviation from Raoult’s law
(C) It shows a negative deviation from Raoult’s law

(D) It is metastable

12. All radioactive disintegration nuclear reactions are of 

A. First-order     B.   Second-order

C.  Third-order   D. Zero-order

13. Glucose can be converted into ethanol by an enzyme

A.  Lipase     B.   Zymase

C.   Sucrose   D.   Urease

14. Cadmium has isotopes.

A. 6    B. 5    C.   3     d.   4

15. Periodic table was made by

A.  mandeleve      B.  Mosely

C.  Jhon Dalton    D.  Ruther Ford

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16. Atomic number of chlorine is

   A. 13        B.  9

  C. 17        D.   19

17. Isotopes are different in the presence of 

A.  Neutron      B.  Proton

C.  Electron      D.  Positronn

18. The highest electronegative elements in the periodic table is 

A.   Chlorine       B.   Fluorine 

C. Sodium        D.   Iodine

19. Ph of water is 

A.   5     B.    9

C.  7     D.   4

20. Amphoteric solid is 

A.  glass                     B.  Calcium carbonate 

C.   calcium chloride   D. sodium chloride

Important Chemistry MCQs