Test Your Knowledge - Free MCQ PRACTICE
by Saksham Chaudhry : Paschim Vihar, New Delhi 110063 T: 1142316457, 9810570740
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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. Presence of halogen in organic compounds can be detected using
A. Leibig's test
B. Duma's test
C. Beilstien's test
D. kjeldahl test

2. Bagasse, a by-product of sugar manufacturing industry, is used for the production of :
A. nylon
B. glass
C. paper
D. alcohol

3. The chemical bond that must be present in azo dyes is
A. >C=C<
B. -N=N-
C. >C=N-
D. -O-O-

4. Animal charcoal is obtained by
A. the destructive distillation of bones
B. burning the bones of animals in contact with air
C. burning the flesh of animals
D. burning the bones of animals out of contact with air

5. The most malleable metal is :
A. Silver
B. Gold
C. Aluminium
D. Sodium

6. The number of g-molecule of oxygen in 6.02 x 1024CO molecules is
A. 1 gram of molecule
B. 0.5 gram of molecule
C. 5 gram of molecule
D. 10 gram of molecule

7. A solution with pH=2 is more acidic than a solution of pH=6 by a factor of
A. 4
B. 12
C. 400
D. 1000

8. The mass of glucose that should be dissolved in 50 g of water in order to produce the same lowering of vapour pressure as is produced by dissolving 1 g of urea in the same quantity of water is
A. 6 g
B. 3 g
C. 1 g
D. 18 g

9. The derivative is
A. 1, 1 - dibromopropane
B. 1, 4 - dibromobutane
C. 2, 2 - dibromobutane
D. 1, 2 - dibromoethane

10. Mesomeric effect involves delocalisation of
A. protons
B. sigma electrons
C. pi electrons
D. None of these

11. The IUPAC name of [Co(NH3)5 ONO]2+ ion is
A. Penta ammine nitro cobalt (III) ion
B. Penta ammine nitrito cobalt (IV) ion
C. Penta ammine nitro cobalt (IV) ion
D. Penta ammine nitrito cobalt (III) ion

12. Which of these will have the least volume?
A. HCl
B. HBr
C. HF
D. HI

13. It is expected to behave as
A. a central metal in a coordination compound
B. a reducing agent
C. an oxidising agent
D. a chelating agent

14. Inductive effect involves
A. delocalisation of p electrons
B. displacement of p electrons
C. delocalisation of s electrons
D. displacement of s electrons

15. Argon is used
A. in radiotherapy for treatment of cancer
B. in high temperature welding
C. in filling airships
D. to obtain low temperature

16. The bacteria responsible for 'nitrogen fixation' are found in the roots of
A. grass
B. citrus plants
C. leguminous plants
D. neem tree

17. The compound which gives turbidity immediately with Lucas reagent at room temperature is
A. butan-1-ol
B. 2-methyl propan-1-ol
C. butan-2-ol
D. 2-methyl propan-2-ol

18. In order to prevent the corrosion of iron pipes, they (are often coated with a layer of zinc. This process is termed as
A. electroplating
B. annealing
C. galvanization
D. volcaization

19. The group of substances industrially prepared by electrolysis is
A. ethyl alcohol, chlorine, caustic soda
B. caustic soda, chlorine. aluminium
C. nitrogen, oxygen, aluminium
D. sugar, common salt, iron

20. Lime water contains
A. sodium hydroxide
B. calcium hydroxide
C. sodium carbonate
D. calcium chloride

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