Time : 35 min Total marks : 35
(NB: Fill up the circle of the most appropriate answer from the given alphabetized circles with ball ponit pen against the serial number provided in the MCQ answer sheet. Each question carries 1 mark)
1. What is the bond energy of H-CI?
a. 431 Kjmol-1 b. 414 Kjmol-1
c. 326 Kjmol-1 d. 244 Kjmol-1
2. Which is the negative pole of dry cell?
a. Carbon rod b. Zinc plate c. Copper d. Manganese di-oxide
3. Which one is the best fuel to use in fuel cell?
a. Carbon di-oxide gas b. Tear gas c. Hydrogen gas d. Oxygen gas
4. Which one is resist by ozone layer?
a. IR Öb. X-ray c. UV d. Y-ray
5. Which one is non-electrolyte?
a. H2S04 b. Cuso4 c. C6H12O6 d. Nacl
6. What is the another name of H+?
a. Hydronium ion b. Active oxygen c. Reductant hydrogen d. Proton
7. What is the HP of bleu coloured alkali in Universal indicator?
a. 07-11 b. 11-14 b. 0-3 d. 3-7
8. What is the formula of gypsum?
a. CaCO3 b. Na2CO3 c. CasO4. 2H2O d)Nacl
9. What is china clay?
a. Small stone b. Cement c. Water d. Soil
10. Stones decay due to-
i. Fog ii. Flow of air iii. Sunlight
Which one is correct?
a. ii & iii b. i & iii
c. i, ii & iii d. i & ii
11. In case of chemical equilibrium-
i. the rate of forward and backward reaction is equal.
ii. the concentration of reactants and products is equal
iii. the reaction never stops
which one is correct?
a. i & ii b. ii & iii
c. i & iii d. i. ii & iii
12. Which one is a transition element?
a. Ca b. Al c. Cu d. pb
13. Which of the following acid present in the lemon juice.
a. citric acid b. acetic acid
c. lactic acid d. formic acid
14. Which one is an inorganic compound?
a. Water b. starch c. protein d. fat
15. Which of the following is a Halogen?
a. B b. Ca c. Ne d. Br
16. Which of the following is a inert element?
a. He b. Li
c. Na d. K
* Read the passage carefully below and answer the ques. no. 17 & 18 carefully.
In the Laboratory of chemistry, a group of student were given a mixture of chemical compounds that contained NH4Cl and CaO solution, the teacher asked the students to heat the mixture.
17. What is the name of the gas that will be produced in the above experiment?
a. Clorine b. Hydrogen
c. Nitrogen d. Ammonia
18. What will be produced if the gas is passed through liq. CO2 at 130-150èC?
a. Urea b. Ammonium Carbonate
c. Ammonium Carbide
d. Ammonium Hydroxide
19. In which year John Newland gave octave Law?
a. 1864 b. 1789 c. 1869 d. 1764
20. Which is produced when carbohydrate foods react with oxygen?
a. CO2 b. H2O c. Energy d. All
21. Which one of the following is called Magnesia?
a. MgO b. MgCl2
c. Mg (OH)2 d. MgCO3
22. Which of the following is Green House ‡as?
a. CO2 b. O2 c.H2 d. N2
23. Which of the following is a electric conductor?
a. Diamond b. Graphite c. Wax d. Plastic
24. Which of the following is dolomite?
a. CaCO3 d. MgCO3 c. Ca(OH)2 d. CaCO3.MgCO3
25. which is used to remove the rust of copper?
a. Tamarind d. Lima c. Slaked Lime d. Water
26. What is rust?
a. Iron Oxide b. Copper Oxide c. Zine Oxide d. Lead Oxide
27. How many alcohol groups are present in glycerine?
a. 1 b. 2 c. 3 d. 4
28. Which particle revolve around the nucleus?
a. Proton b. Neutron c. Electron d. Meson
29. Which one is a natural polymer?
a. Rubber b. Teflon
c. Polyester d. Polythene
30. In the reaction, H2SO4 acts as-
a. Catalyst b. Dehydrating agent c. Reducing agent d. Neutral agent
31. What is the PH of neutral solution?
1. 6 b. 7 c. 8 d. 9
32. What is the oxidation number in most oxide compound?
a. -1 b. -2 c. +2 d. -1/2
33. Which acid is found in soft drinks?
a. Carbonic acid b. Citric acid c. Tartaric acid d. Lactic acid
34. For which state of matter changes?
a. Temperature b. Pressure c. Concentration d. Heat
35. Which of the following is used as preservatives?
a. Benzoic acid b. Ascorbic acid c. Nitric acid d. Formic acid
Answer : 1a, 2b, 3c, 4b, 5c, 6d, 7a, 8c, 9d, 10c, 11c 12c, 13a, 14a, 15c, 16a, 17d, 18a, 19a, 20d, 21c, 22a, 23b, 24d, 25a, 26a, 27c, 28c, 29a, 30b, 31b, 32b, 33a, 34a, 35a.
