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Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution.....
Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a...
Vikas Yadav
Nov 3, 20201 min read
88 views
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Explain why, the direction of induced current in the coil of an A.C. generator changes after.....
Explain why, the direction of induced current in the coil of an A.C. generator changes after every half revolution of the coil. Solution....
Aseet Srivastava
Oct 14, 20201 min read
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A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet...
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is : (i) pushed into the coil ? (ii)...
Aseet Srivastava
Oct 14, 20201 min read
10 views
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Name two safety measures commonly used in domestic electric circuits and appliances.
Name two safety measures commonly used in domestic electric circuits and appliances. (NCERT Book Question) Answer. (i) Provision of...
Aseet Srivastava
Oct 14, 20201 min read
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What precautions should be taken to avoid overloading of domestic electric circuits ?
What precautions should be taken to avoid overloading of domestic electric circuits ? (NCERT Book Question) Answer. (i) Too many high...
Aseet Srivastava
Oct 14, 20201 min read
4 views
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A circuit has a fuse of 5 A. What is the maximum number of 100 W(220 V) bulbs that can be safely...
Q. A circuit has a fuse of 5 A. What is the maximum number of 100 W (220 V) bulbs that can be safely used in the circuit ? Solution....
Aseet Srivastava
Oct 14, 20201 min read
5 views
0 comments
How did nationalism develop through culture in Europe ? Explain. OR a “Culture played an.....
How did nationalism develop through culture in Europe ? Explain. OR a “Culture played an important role in the development of nationalism...
Aseet Srivastava
Oct 13, 20201 min read
117 views
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Describe any three features of Napoleonic Code.
(1) It abolished the feudal system that prevailed in many parts of Europe. (2) It established equality before the law. (3) Under this,...
Aseet Srivastava
Oct 13, 20201 min read
198 views
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How did female figures become an allegory of the nation during the nineteenth century in Europe?
Female figures become an allegory of the nation during the nineteenth century in Europe in the following ways: (1) Artists, in the...
Aseet Srivastava
Oct 13, 20201 min read
176 views
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Describe the process of unification of Italy.
Italy was unified after numerous struggles and movements as described below: (1) Italy had a long history of political fragmentation...
Aseet Srivastava
Oct 13, 20201 min read
13 views
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Describe any three conditions that led to the formation of the British nation state.
Conditions that led to the formation of the British nation state. (1) The Protestant movement which led to the formation of the Church of...
Aseet Srivastava
Oct 12, 20201 min read
2,594 views
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How did Britain come into existence as a nation state? Explain
Before the eighteenth century, there were different ethnic identities with their own culture and politics - English, Welsh, Scots, or...
Aseet Srivastava
Oct 12, 20201 min read
1,482 views
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Describe the role of Otto von Bismarck in the making of Germany.
The role of Otto von Bismarck in the making of Germany is as follows: Nationalist feelings were widespread among middle-class Germans,...
Aseet Srivastava
Oct 12, 20201 min read
4,290 views
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Highlight any three measures and practices that French revolutionaries introduced to create a.....
Highlight any three measures and practices that French revolutionaries introduced to create a sense of collective identity among the...
Aseet Srivastava
Oct 12, 20201 min read
27 views
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Explain the mechanism of the cleaning action of soaps.
Explain the mechanism of the cleaning action of soaps. Solution: There are so many impurities and dirt mixed in water, and most of all...
Vikas Yadav
Oct 4, 20201 min read
13 views
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What change will you observe if you test soap with litmus paper (red and blue)?
What change will you observe if you test soap with litmus paper (red and blue)? Solution: When we test soap with litmus paper colour of...
Vikas Yadav
Oct 4, 20201 min read
8 views
0 comments
Explain the formation of scum when hard water is treated with soap?
Explain the formation of scum when hard water is treated with soap? Solution: Scrum is produced from reaction of hard water with soap....
Vikas Yadav
Oct 4, 20201 min read
6 views
0 comments
Why are carbon and its compounds used as fuels for most applications?
Why are carbon and its compounds used as fuels for most applications? Solution: Carbon and its compounds used as fuels for most...
Vikas Yadav
Oct 4, 20201 min read
5 views
0 comments
Why does micelle formation take place when soap is added to water? Will a micelle be .......
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?...
Vikas Yadav
Oct 4, 20201 min read
8 views
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How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical.....
How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?
Vikas Yadav
Oct 4, 20201 min read
8 views
0 comments
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