To test the importance of CO2 Mohl used……… solution.
A) O2
B) COOH
C) K2SO4
D) KOH
1 Answers
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Some cities gain importance as administrative centres while others gain importance as industrial centres.
The rise and fall of the cities depend on its political and cultural graph of events. The process of urbanisation is associated mainly with political and economic development. The rulers play an...
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10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 mL of 1.0 M Mohr salt solution was added c
Correct Answer - 0.071
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The colourless solution formed when excess of CO2 is passed through slaked lime is
D) Ca(HCO3)2
2 Answers 1 views
In Mohl’s half-leaf, experiment, which part becomes bluish black for starch test?
C) Leaf part outside the bottle
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Mohl’s half leaf experiment shows ……. is essential for photosynthesis.
Mohl’s half leaf experiment shows CO2 is essential for photosynthesis.
2 Answers 2 views
In Mohl’s half leaf experiment, the part of the leaf inside the flask does not become blue- black after
Answer is (D) both A and B
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Strenuous exercise causes A) CO2 consumption B) oxygen debt C) CO2 debt D) more active
(B) oxygen debt
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Take two test tubes with some water. Add salt powder to one test tube and add crystals of salt to the second one. Observe.
B) size of the solute
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1. (a) Is ammonia more dense or less dense than air? (b) What property of ammonia is demonstrated by the Fountain Experiment? (c) Write the balanced equation for the reaction between ammonia and sulphuric acid. 2. Pick the odd member from the list giving reasons: (a) Ammonia, sulphur dioxide, hydrogen chloride, carbon dioxide. (b) Copper oxide, aluminium oxide, sodium oxide, magnesium oxide. 3. Give reasons for the following : (a) Liquid ammonia is used as a refrigerant in ice plants. (b) Aqueous solution of ammonia is used for removing grease stains from woollen clothes. (c) Aqueous solution of ammonia gives a pungent smell. (d) Aqueous solution of ammonia conducts electricity.
(1) (a) ammonia is less dense than air (b) solubility in water (c) 2NH3 + H2SO4 → (NH4)2SO4 (2) (a) Ammonia → because - NH3 is basic while, SO2,HCl and CO2 are acidic oxides. (b) CuO,...
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Match the complex with its oxidation state of central metal `{:(" Column I"," Column II"),("(A) Chromyl chloride test","(p) "S^(2-)),("(B) Ring test",
Correct Answer - A(s), B(q), C(r), D(p)
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