Benzene react with chlorine in the presenc of ferric chloride which form chlorobezene, which on further reaction with sodium hydroxide gives sodium phenoxide. Then sodium phenoxide acidified and form phenol.
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The title ‘Lost Spring’ conveys and pictorises that childhood is like the spring. As everything blooms in this season, in the same way the childhood should bloom but through the poverty of Saheb and Mukesh, we come to know about their stolen childhood. It is being destroyed and dumped in the web of poverty, dirt and dust. They have a strong desire to come out of this poor situation and work hard for this. Let us make a strong determination to realize our dreams.
The rise of Napolean:(i)In 1804, Napoleon Bonaparte crowned himself Emperor of France. He set out to conquer neighbouring European countries, dispossessing dynasties and creating kingdoms where he placed members of his family.
(ii)Napoleon saw his role as a moderniser of Europe. He introduced many laws such as the protection of private property and a uniform system of weights and measures provided by the decimal system. (iii)Initially, many saw Napoleon as a liberator who would bring freedom for the people. But soon the Napoleonic armies came to be viewed everywhere as an invading force. He
(ii)Napoleon saw his role as a moderniser of Europe. He introduced many laws such as the protection of private property and a uniform system of weights and measures provided by the decimal system. (iii)Initially, many saw Napoleon as a liberator who would bring freedom for the people. But soon the Napoleonic armies came to be viewed everywhere as an invading force. He
The spread of electricity has helped farmers in Palampur in following ways:
(i)Electric-run tubewells can Irrigate much larger areas of land.
(ii)Electricity has transformed the system of Irrigation.
(iii)Electricity has reduce the pollution because it is a cheap and pollution free source of Irrigation.
(iv)The persian wheels are being replaced by tubewells.
(v) It also helps the farmers by threshing and drilling of crops.
(i)Electric-run tubewells can Irrigate much larger areas of land.
(ii)Electricity has transformed the system of Irrigation.
(iii)Electricity has reduce the pollution because it is a cheap and pollution free source of Irrigation.
(iv)The persian wheels are being replaced by tubewells.
(v) It also helps the farmers by threshing and drilling of crops.
The city of Firozabad is famous for its bangles. Every other family in Firozabad is engaged in the business of making bangles. Firozabad is a centre of India’s glass-blowing industry. Since generations the families are working around furnaces, welding glass and making bangles for all the women on the land. The bangles are symbolised as woman’s Suhag.
There are bangles makers in the narrow streets of Firozabad in every house. The heaps of the spirals of bangles can be seen on every place there in Firozabad. All the members of the family can be seen welding and soldering the glass bangles in t
There are bangles makers in the narrow streets of Firozabad in every house. The heaps of the spirals of bangles can be seen on every place there in Firozabad. All the members of the family can be seen welding and soldering the glass bangles in t
Given, a parallel plate capacitor is charged to a potential difference V. If the distance between the plates is doubled then,i) Electric field in between the plates is given by E=σε∘Since, E does not depend upon distance between the capacitor plates, electric field remains unaffected.ii) Capacitance is given by C=ε∘AdWhen distance between the plates is doubled C =ε∘A2d=12C That is, capacitance becomes half of it s initial value.iii) Energy is given by U=12Q2CThere is no change in Q but, capacitance changes. Since Capacitance becomes half, stored energy of the capacitor becomes twice of it s i
pseb Textbook Solutions Class 10 Mathematics. Free online Mathematics Textbook Questions and Answers. Students can find Mathematics 2018-19 syllabus, marking scheme, solved sample papers and previous year papers
The Chinese art is based on the imagination of the painter and is considered as the spirit resides in it that gives
the essence of inner life. Where the Europian art is more about figurative paintings that are realistic and perfectly
resemble with the real objects.
The Chinese painter Wu Daozi used to draw paintings from imagination and Quinten Metsys from Belgium painted
arealistic ly to impress the father of the girl he had fallen in love with.
the essence of inner life. Where the Europian art is more about figurative paintings that are realistic and perfectly
resemble with the real objects.
The Chinese painter Wu Daozi used to draw paintings from imagination and Quinten Metsys from Belgium painted
arealistic ly to impress the father of the girl he had fallen in love with.
मानव संसाधन इसलिए महत्वपूर्ण हैं क्योंकि ज्ञान, कौशल तथा प्रौद्योगिकी से लोग और अधिक संसाधन बनाने के लिए प्रकृति का सबसे अच्छा उपयोग कर सकते हैं|
The postmaster sends the money to Lencho to help him and keep his faith God alive. He was impressed by Lencho s faith in God. He wished that he could also have the same faith in God. So, he asked the other employees to contribute some money and he himself gave a part of his salary. After he collects all the contribution, he puts that into an envelope and posts it to Lencho s address. He signs the letter as God because he doesn t want to shake lencho s faith in God.
Answer :- magnitude
He learned that courage was not the absence of fear, but the triumph over it. A man is not brave if he does not feel afraid. A man is brave only when he conquers that fear.
Solved Questions Answers and Assignments for STD 9 हिंदी हिंदी कक्षा 9 प्रथम सत्र Study Notes for GCERT Textbooks Available online.
Conversion of but-1-ene to n-Butyliodide.
The angular magnification of a compound microscope is the ratio of the angle subtended by the final image at the eye to the angle subtended by the object at the eye, when both are placed at the least distance of distinct vision.This is the required expression for angular magnification.
i. The monsoon in India is uneven, erratic in nature and is unreliable. While it may rain well during one year, in another year, the rainfall may be scarce. Hence Irrigation is necessary despite the monsoon.
ii The drip method of irrigation is the best among all modern methods of irrigation as in this method water is directly given to the crops through perforated pipes. This reduces evaporation and each crop may be irrigated according to its requirements.
iii Alkaline salts may come up to the ground in areas where canals are used for irrigation. This happens when the water table is only a f
ii The drip method of irrigation is the best among all modern methods of irrigation as in this method water is directly given to the crops through perforated pipes. This reduces evaporation and each crop may be irrigated according to its requirements.
iii Alkaline salts may come up to the ground in areas where canals are used for irrigation. This happens when the water table is only a f
For the reaction,CH4 (g) + 2 O2 (g) ⇌ CO2 (g) + 2H2O (l), ΔrH = - 170. 8 kJ mol-1This equilibrium is an example of heterogeneous chemical equilibrium.Hence, for itnot correct expression.In addition of CH4 (g) or O2 (g) at equilibrium Kc = will be decreased according to expression (i) but Kc remains constant at constant at constant temperature fro a reaction, so for maintaining the constant value of Kc, the concentration of CO2 will increase in same order. Hence, on the addition of CH4 or O2 equilibrium will cause to the right.This reaction is an example of an exothermic reaction.
According to Rutherford’s model, we have Energy is negative implies that the electron –nucleus is a bound or attractive system. OR
According to the Bohr’s atomic model, electrons revolve around the nucleus only in those orbits for which the angular momentum is an integral multiple of .So, as per Bohr’s postulate, we have This is the required expression for Bohr s radius.
According to the Bohr’s atomic model, electrons revolve around the nucleus only in those orbits for which the angular momentum is an integral multiple of .So, as per Bohr’s postulate, we have This is the required expression for Bohr s radius.
Let the point P (x, - 1) divides the line segment joining the points A (-3, 5) and B (2, -5) in the ratio k : 1. ThenHence, the required ratios is 3 : 2.
(i) ∆U = wad, wall is adiabatic.(ii) ∆U = –q, thermally conducting walls.(iii) ∆U = q – w, closed system.