Chemistry Online Test 2077/06/15
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1. You are going to attempt chemistry online test.
2. Total time of exam is 40 Minutes.
3. Total marks is 40.
4. Once started, you need to answer all the questions before submitting the test.
5. Click on ‘Test Summary’ at last to review your answer before finishing test.
6. When you finish test, you can have result instantly. You can review your answer after finishing the test. This means you will be able to view which question are correct and which are incorrect.
7. Good luck!!!
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Question 1 of 40
1. Question
1 point(s)One gram of hydrogen contains how many molecules?
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Question 2 of 40
2. Question
1 point(s)180 g of pure water is equal to …………… moles.
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Question 3 of 40
3. Question
1 point(s)An organic compound containing C, H and N gave the following analysis: C = 40g, H = 3.33 and N = 56.64 g, the empirical formula of the compound is:
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Question 4 of 40
4. Question
1 point(s)What is the maximum number of hydrogen bonds in which a water molecule can participate?
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Question 5 of 40
5. Question
1 point(s)The covalency of carbon in CO molecule is
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Question 6 of 40
6. Question
1 point(s)The oxidation number of Cr in CrO_5 is
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Question 7 of 40
7. Question
1 point(s)xC + yHNO_3 → CO_2 + NO_2 + H_2O. The value of x and y to balance this equation is,
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Question 8 of 40
8. Question
1 point(s)How much H_2O_2 should decomposes to yield 8g of O_2?
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Question 9 of 40
9. Question
1 point(s)The vapour density of gas is 22.4 at NTP. The volume occupied by 22.4 g of gas is
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Question 10 of 40
10. Question
1 point(s)1.585 g of a divalent metal combines with 0.4 g oxygen to form its oxide. The atomic weight of metal is
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Question 11 of 40
11. Question
1 point(s)A cylinder of a gas contains 625 ml of gas at 25^oC. The gas is compressed to 400 ml. Now the final temperature of gas is
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Question 12 of 40
12. Question
1 point(s)The law of constant proportions was enunciated by
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Question 13 of 40
13. Question
1 point(s)For the reaction N_2 + 3H_2 ↔ 2NH_3 + heat
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Question 14 of 40
14. Question
1 point(s)One amu is
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Question 15 of 40
15. Question
1 point(s)Which of the following is not an oxidizing agent?
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Question 16 of 40
16. Question
1 point(s)Roasting is done in case of
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Question 17 of 40
17. Question
1 point(s)The most abundant alkali metal in nature is
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Question 18 of 40
18. Question
1 point(s)Which of the following is amphoteric oxide?
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Question 19 of 40
19. Question
1 point(s)Catalyst used in oxidation of SO_2 into SO_3 is
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Question 20 of 40
20. Question
1 point(s)Ammonia when heated with CuO gives
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Question 21 of 40
21. Question
1 point(s)Passivity of iron results due to the formation of thin protective layer of
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Question 22 of 40
22. Question
1 point(s)HI reacts with HNO_3 to give
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Question 23 of 40
23. Question
1 point(s)Sodium extract of organic compound gives blood red colour with FeCl_3. The compound contains
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Question 24 of 40
24. Question
1 point(s)Alcoholic caustic potash reacts with ethyl iodide to form
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Question 25 of 40
25. Question
1 point(s)Ethyl iodide when reduced by Zn-Cu couple, which of the following will be formed?
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Question 26 of 40
26. Question
1 point(s)Lindlar’s catalyst is
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Question 27 of 40
27. Question
1 point(s)The compound having only primary hydrogen atom is
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Question 28 of 40
28. Question
1 point(s)CNG is called
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Question 29 of 40
29. Question
1 point(s)Propyne on ozonolysis forms
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Question 30 of 40
30. Question
1 point(s)Dalton’s law of partial pressure will not apply to the following mixture of
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Question 31 of 40
31. Question
1 point(s)Calcination is the process of heating ore
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Question 32 of 40
32. Question
1 point(s)Which of following alloys contains Cu and Zn?
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Question 33 of 40
33. Question
1 point(s)In solvey process, the products that are recycled are
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Question 34 of 40
34. Question
1 point(s)Adsorption of hydrogen by metal is called
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Question 35 of 40
35. Question
1 point(s)The allotropic form of sulphur formed by plunging boiling sulphur into water is
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Question 36 of 40
36. Question
1 point(s)Ammonia is dried over
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Question 37 of 40
37. Question
1 point(s)Which of the following is the strongest acid?
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Question 38 of 40
38. Question
1 point(s)No. of isomers of C_2H_4O_2 is
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Question 39 of 40
39. Question
1 point(s)The IUPAC name of HCOOC_2H_5 is
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Question 40 of 40
40. Question
1 point(s)Ethene and ethyne can be separated using
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