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Ask QuestionPosted by Manisha जांगिड़ 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Stereochemistry is the systematic presentation of a specific field of science and technology traditionally requires a short preliminary excursion into history. Stereochemistry is the ‘chemistry of space ‘, that is stereochemistry deals with the spatial arrangements of atoms and groups in a molecule.
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Posted by Neha Kumari Paswan 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Buffer solution
They are those solutions which has a constant value of pH , no matter what we add in to them .
Example: The pH of Blood is 7.4-7.6. Blood act as a buffer. As u all know, in spite of eating so many types of food items, the pH of blood remains same.
The buffer solution is defined as: A solution which resists the change in hydrogen ion concentration on addition of a small amount of acid or a base in to it.
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Posted by Neha Kumari Paswan 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Moisture present in the atmosphere in the form of gaseous state is called water vapour.Humidity is the amount of water vapour present in the atmosphere.
1. There is a variation in the content of water vapour in the atmosphere with respect to time and place.
2. As one goes higher in the altitude, the amount of water vapour decreases. Above twelve km from the earth's surface, there is almost no water vapour.
3. In polar regions it is practically absent in winter while in warm and humid equatorial regions have a high amount of water vapour.
4. Water vapour is the source of moisture for clouds, rain and frost.
5. Water vapour is the gas that absorbs heat. Hence, it is so a greenhouse gas. It releases this heat when it condenses.
6. It plays a prominent role in heating and cooling of the atmosphere.
Posted by Neha Kumari Paswan 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Greenhouse gases are those that absorb and emit infrared radiation in the wavelength range emitted by Earth. In order, the most abundant greenhouse gases in Earth's atmosphere are water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), ozone (O3), chlorofluorocarbons (CFCs).
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Yogita Ingle 5 years, 5 months ago
Part III of 'Alan Turing, Father of the Modern Computer' is a digital facsimile of 'Proposed Electronic Calculator', Turing's 48-page report describing his revolutionary electronic computing machine.
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Yogita Ingle 5 years, 5 months ago
Respiration is defined as a metabolic process wherein, the living cells of an organism obtains energy (in the form of ATP) by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.
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Yogita Ingle 5 years, 5 months ago
Early settlers began to build temples at selected spots in their villages. The earliest known temple was a small shrine made of unbaked bricks. These early temples were much like a house because they were small in size. There used to be an open courtyard around which rooms were constructed. Temples were the residence of various gods. Temples also had their outer wall going in and out at regular intervals, which no ordinary building ever had.
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Tamanna Khandhakar 5 years, 4 months ago
Krishna Vaishist 5 years, 4 months ago
Yogita Ingle 5 years, 5 months ago
The Constitution of India guarantees six Fundamental Rights as follows:
- Right to Equality
- Right to Freedom
- Right against Exploitation
- Right to Freedom of Religion
- Cultural and Educational Rights
- Right to Constitutional Remedies These rights are of great importance because:
- These rights assure a man for his overall development.
- Without these rights, one’s life cannot be made worth living.
- If these rights are violated, the court is responsible to justice.
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Yogita Ingle 5 years, 5 months ago
Resonance
It is given by Heisenberg.
He took a molecule of ozone. Its structure was represented as:
According to the structure, it is clearly seen that it has one double bond and another single bond. So, obviously the bond lengths will be different. For double bond between oxygen atoms, the bond length is 121pm and for single bond it is 148pm.
But, the bond length was found experimentally to be same for both the bonds that is 128pm .This bond length lies in between the values of single and double bond lengths.
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Yogita Ingle 5 years, 5 months ago
Hydrogen bonding refers to the formation of Hydrogen bonds, which are a special class of attractive intermolecular forces that arise due to the dipole-dipole interaction between a hydrogen atom that is bonded to a highly electronegative atom and another highly electronegative atom while lies in the vicinity of the hydrogen atom. For example, in water molecules (H2O), hydrogen is covalently bonded to the more electronegative oxygen atom. Therefore, hydrogen bonding arises in water molecules due to the dipole-dipole interactions between the hydrogen atom of one water molecule and the oxygen atom of another H2O molecule.
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