Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. Fraction of total pressure exerted by methane is
A. 1/9
B. 1/3
C. 8/9
D. 1/2

2. Of the following complex ions, which is diamagnetic in nature?
A. [Ni(CN)4]2–
B. [NiCl4]2–
C. [CuCl4]2–
D. [CoF6]3–

3. Which of the following species does not exert a resonance effect?
A. C6H5NH2
B. C6H5NH3
C. C6H5Cl
D. C6H5OH

4. The correct sequence of reactions to convert p-nitrophenol into quinol involves
A. diazotization, reduction and hydrolysis
B. reduction, diazotization and hydrolysis
C. hydrolysis, reduction and diazotization
D. hydrolysis, diazotization and reduction

5. Which of the following pairs of metals is purified by van Arkel method?
A. Ga and In
B. Ni and Fe
C. Ag and Au
D. Zr and Ti

6. Mercury is a liquid metal because
A. it has a small atomic size
B. it has a completely filled d-orbital that causes d-d overlapping
C. it has a completely filled s-orbital
D. it has a completely filled d-orbital that prevents d-d overlapping of orbitals

7. The product obtained reacts with Phenyl hydrazine but does not answer silver mirror test. The possible structure of X is
A. CH3CH2OH
B. (CH3)2CHOH
C. CH3 ¾ ¾ CH3
D. CH3CHO

8. A complex compound in which the oxidation number of a metal is zero is
A. [Ni (CO)4]
B. K3 [Fe (CN)6]
C. [Pl (NH3 )4]Cl2
D. K4 [Fe (CN)6]

9. Which one of the following is employed as Antithistamine?
A. Norothindrone
B. Diphenyl hydramine
C. Chloramphenicol
D. Omeprazole

10. Water is not effective in extinguishing a fire caused by petrol because
A. the flame is too hot for water to cool it down
B. water and petrol react chemically
C. water and petrol are miscible with each other
D. water and petrol are immiscible with each other and petrol forms the upper layer and continues to burn.

11. The correct order in which the first ionisation potential increases is
A. Na, K, Be
B. K, Be, Na
C. K, Na, Be
D. Be, Na, K

12. Amines behave as
A. aprotic acid
B. Lewis acids
C. Lewis base
D. neutral compound

13. Cinnabar is an ore of
A. copper
B. iron
C. mercury
D. lead

14. The order of stability of metal oxides is
A. Fe2O3 < Cr2O3 < AIZO3 < MgO
B. Fe2O3 < Al2O3 < Cr2O3 < MgO
C. Al2O3 < MgO < Fe2O3< Cr2O3
D. Cr2O3 < MgO < Al2O3 < Fe2O3

15. 35 g of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be
A. 17.45
B. 14.45
C. 15.45
D. 16.45

16. The isotope of uranium capable of sustaining chain reactions is :
A. U-235
B. U-238
C. U-239
D. none of these

17. The maximum concentration of alcohol that does not impair faculties of the human body is
A. 23 mg/100ml
B. 9 mg/100 ml
C. 3 mg/100 ml
D. 1mg/100 ml

18. The volume of 10N and 4N HCl required to make 1 litre of 7N HCl are
A. 0.50 litre of 10N HCl and 0.50 litre of 4N HCl
B. 0.80 litre of 10N HCl and 0.20 litre of 4N HCl
C. 0.75 litre of 10N HCl and 0.25 litre of 4N HCl
D. 0.60 litre of 10N HCl and 0.40 litre of 4N HCl

19. An atom of an element with mass numbers 23 and atomic number 11 will have:
A. 11 neutrons, 12 protons and 11 electrons
B. 11 protons, 12 neutrons and 11 electrons
C. 11 neutrons, 11 protons and 12 electrons
D. 23 protons and 11 electrons

20. The gas used in fire extinguishers is
A. nitrogen
B. sulphur dioxide
C. carbon dioxide
D. hydrogen

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