Chemistry General Knowledge Questions Practice Question and Answer
7 4 Q:
63c8f9528731ac33279f0648 4 Q:
63c7aabfb338bc336f08c023 4 Q:
63c7a61fbdbddb32fd9cc85f 4 Q:
63aaa809afa10611461dc17d 4 Q:
6389b84734f83f147273cfcb 4 Q:
63aaa9205770eb565d50124f 4 Q:
63aaa8a35770eb565d50089c
Q: Why do we boil the extract with conc. HNO3 in Lassaigne’s test for halogens?
423 063c8f9528731ac33279f0648
63c8f9528731ac33279f0648- 1To increase the concentration of NO3- ionsfalse
- 2To increase the solubility product of AgClfalse
- 3It increases the precipitation of AgClfalse
- 4For the decomposition of Na2S AND NaCN formedtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "For the decomposition of Na2S AND NaCN formed"
Q: HCl is an Arrhenius ___________
421 063c7aabfb338bc336f08c023
63c7aabfb338bc336f08c023- 1Acidtrue
- 2Basefalse
- 3Saltfalse
- 4Waterfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Acid"
Q: Which of the following is not a lewis acid?
414 063c7a61fbdbddb32fd9cc85f
63c7a61fbdbddb32fd9cc85f- 1aluminum chloridefalse
- 2sodium ionfalse
- 3Sulphur tetrafluoridefalse
- 4hydroxide iontrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "hydroxide ion"
Q:Read the following questions carefully and answer them.
The advantage of detergents over soaps is
413 063aaa809afa10611461dc17d
63aaa809afa10611461dc17d- 1Detergents are soluble in waterfalse
- 2Detergents could not give much latherfalse
- 3Detergents give lather even with hard watertrue
- 4Soaps give lather with only soft waterfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Detergents give lather even with hard water "
Q: Which fibre is used for making bristles of brushes.
410 06389b84734f83f147273cfcb
6389b84734f83f147273cfcb- 1Kevlarfalse
- 2Nylon-66true
- 3Terylenefalse
- 4Lexanfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Nylon-66"
Q:Read the following questions carefully and answer them.
Cloud is a colloidal dispersion of
395 063aaa9205770eb565d50124f
63aaa9205770eb565d50124f- 1Air in a dispersion medium of waterfalse
- 2Fog in a dispersion medium of waterfalse
- 3Mist in a dispersion medium of airfalse
- 4Water drops in a dispersion medium of airtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Water drops in a dispersion medium of air"
Q:Read the following questions carefully and answer them.
Which of the following is the main nitrogenous waste in humans ?
353 063aaa8a35770eb565d50089c
63aaa8a35770eb565d50089c- 1Ammoniafalse
- 2Ureafalse
- 3Uric Acidtrue
- 4Ammonium Nitratefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Uric Acid "
en11915popular