Chemistry MCQs Test 2

1. Bromine is a non-metal in?

  • (a) Solid state
  • (b) liquid state
  • (b) Gaseous state
  • (d) plasma state
See Answer
(b) liquid state

2. Halogens react with metals to form?

  • (a) Halides
  • (d) oxides
  • (b) Halogen sulfides
  • (d) hydrogenated compounds
See Answer
(a) Halides

3. Alkali metals are?

  • (a) Oxidizing agents
  • (b) dehydrating agents
  • (b) Reducing agents
  • (d) all of these
See Answer
(b) Reducing agents

4. Among the alkali metals with the highest ionization potential is?

  • (a) Na
  • (b) Li
  • (b) Rb
  • (d) Cs
See Answer
(b) Li

5. The halogen present in the solid form is?

  • (a) Chlorine
  • (b) Iodine
  • (d) bromine
  • (b) fluorine
See Answer
(d) bromine

6. The tendency of a metal to lose electrons is called?    b electro

  • (a) Electro negativity
  • (b) Electroplating
  • (d) ashes
  • (d) electrolysis
See Answer
(b) Electroplating

7. The word alkali means?

  • (a) Base
  • (b) basic salt
  • (c) acid
  • (d) neutral
See Answer
(d) neutral

8. What is the oxide of calcium CaO?

  • (a) Acidic
  • (b) basic
  • (c) atmospheric
  • (d) neutral
See Answer
(b) basic

9. Which one of the following is not an Alkali metal?

  • (a) Francium
  • (d) radium
  • (b) Rubidium
  • (b) cesium
See Answer
(b) cesium

10. Why are group 11 elements named earth metals?

  • (a) Their oxides are basic
  • (b) Their oxide and hydroxide are water-soluble
  • (c) Both A and B
  • (d) They are found on earth
See Answer
(c) Both A and B

11. Lower atomic volume generally leads to higher?

  • A) Density
  • B) Brittleness
  • C) Melting and boiling points
  • D) All
See Answer
D) All

12. Which of the following form is last stable uni-negative ion?

  • A) Li
  • B) Be
  • C) B
  • D) C
See Answer
B) Be

13. Which of the following metal ions has lowest ionic mobility in aqueous solution?

  • A) Li+
  • B) Na+
  • C) K+
  • D) Rb+
See Answer
A) Li+

14. Which of the following oxides will from strongest acid when heated with water?

  • A) CI2O7
  • B) SiO2
  • C) P2O5
  • D) No2
See Answer
A) CI2O7

15. Which of the following has no variable valency?

  • A) Co
  • B) Fe
  • C) Mn
  • D) Zn
See Answer
D) Zn

16. Chemical composition of natural chromite is?

  • A) FeO.Cr2O3
  • B) K2CrO4
  • C) Fe2O3
  • D) Fe2O3.H2O
See Answer
A) FeO.Cr2O3

17. Heating P4O10 with conc.HNO3 gives?

  • A) NO
  • B) N2O
  • C) No2
  • D) N2O5
See Answer
D) N2O5

18. Identify the incorrect statement.

  • A) SO2 behaves both as oxidizing and reducing agent
  • B) H2O2 acts as oxidizing reducing and reducing agent than H2
  • ) Bond angle in water is lower than H2S
See Answer
C) Bond angle in water is lower than H2S

19. Which of the following has bond formed by the overlap of SP-SP2 Hybrid orbitals?

  • A) Propyne
  • B) Propene
  • C) Ethyne
  • D) 1, 3-butadiene
See Answer
B) Propene

20. Bonds present between two carbon atoms in Ethylene are?

  • A) Tow sigma & one Pi
  • B) One sigma and two Pi
  • C) One sigma & one Pi
  • D) Two sigma and two pi
See Answer
C) One sigma & one Pi

21. Compound that has the lowest boiling point?

  • A) N.hexane
  • B) 2-methlpentane
  • C) 3-methyl pentane
  • D) 2, 2- dimethyl butane
See Answer
D) 2, 2- dimethyl butane

22. Which of the following ions is the most stable?

  • A) OCN
  • B) ONE
  • C) NOC
  • D) None of these
See Answer
A) OCN

23. Only two isomeric mononchloro derivaties are possible for?

  • A) n- Octane
  • B) Benzene
  • C) 2-methly propene
  • D) 2, 4-dimethyl pentane
See Answer
C) 2-methly propene

24. Among following, which one is the example of ketone?

  • A) 2,2 –dimethyl1 – 1 – pheny1 Propanone
  • B) Butanal
  • C) P-nitrobenzen Carbaldhyde
  • D) None of them
See Answer
A) 2,2 –dimethyl1 – 1 – pheny1 Propanone

25. The equimolar quantities of methanol and ethanol are heated with conc. H2SO4. The product (s) formed is:

  • A) CH3OCH3
  • B) CH3OC2H3
  • C) (C2H5)2O
  • D) All of these
See Answer
D) All of these
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