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- 1. Multiple Choice
1. Qualitative analysis of a salt means...
Finding out the acidic radicals present in it.
Finding out the basic radicals present in it.
Both
None of the these
- 2. Multiple Choice
2. For preliminary tests of a sample we check...
Colour
Nature
Odour
Solubility
- 3. Fill in the Blank
What is the formula of sodium nitroprusside?
- 4. Open Ended
4. What would you do if dilute acid spills and falls on your fingers?
- 5. Open Ended
5. How would you check the odour of an amorphous sample?
- 6. Poll
6. Sulphide and Carbonate are the only dilute acid radicals.....
Agree
Strongly agree
Others are there
Donot agree
- 7. Open Ended
7. If there is a lot of smoke and foul smelling gases in the laboratory, what would you immediately do?
- 8. Multiple Choice
8. Carbonate radical turns lime water milky because...
Of formation of Calcium hydroxide
Of formation of Sodium hydroxide
Of formation of Calcium carbonate
Of formation of lime water milky
- 9. Multiple Choice
9. Lead acetate paper turns black due to formation of..
PbS
Na2S
PbSO4
Pb2S
- 10. Multiple Choice
10. What is the unique characteristics of Carbon dioxide gas?
Evolution of bubbles of gases.
Evolution of brisk effervescence of gases.
Evolution of brisk effervescence of colourless odourless gas.
Evolution of colourless odourless gas with brisk effervescence which doesnot support combustion.
- 11. Fill in the Blank
11. To the white ppt formed after adding BaCl2 solution, upon addition of Dil HNO3 which compound is formed?
- 12. Multiple Choice
12. While checking for solubility of a sample if tap water is used what can you observe?
Cloudy appearance of liquid
Partial solubility of sample
Small undissolved particles
No difference from what we get in adding distilled water.
- 13. Fill in the Blank
13. Write the reaction for confirmatory test of carbonate with BaCl2 solution.
- 14. Fill in the Blank
14. Write the reaction for confirmatory test of sulphide radical with nitroprusside.
- 15. Open Ended
15. What is the best part of observing the tests in chemistry laboratory?
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