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Gaurav Seth 4 years ago
Changing the colour of red litmus paper to blue is a general property of the alkaline solution. pH scale gives information about the acidic basic and neutral solution.
Solutions having a value of pH ranging 0 to 7 on pH scale are termed as an acidic solution.
Solutions having a value of pH ranging 7 to 14 on pH scale are known as basic solutions.
Solutions having the value of pH equal to 7 on pH scale are known as neutral solutions.
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Meghna Thapar 4 years, 5 months ago
Time travel to the past is theoretically possible in certain general relativity spacetime geometries that permit traveling faster than the speed of light, such as cosmic strings, transversable wormholes, and Alcubierre drives. In special relativity, it is impossible to accelerate an object to the speed of light, or for a massive object to move at the speed of light. However, it might be possible for an object to exist which always moves faster than light.
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Yogita Ingle 4 years, 6 months ago
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Posted by Kanika Dhasmana 4 years, 7 months ago
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Yogita Ingle 4 years, 7 months ago
Some organisms that use the anaerobic mode of respiration are - yeast, bacteria.
| Aerobic respiration | Anaerobic respiration |
| 1. Takes place in presence of oxygen. | Take place in absence of oxygen. |
| 2. Its end products are carbon dioxide and water. | Its end products are ethanol and carbon dioxide. |
| 3. More energy is released. | Less energy is released. |
| 4. It takes place in cytoplasm and mitochondria. | It takes place only in the cytoplasm. |
| 5. Complete oxidation of glucose takes place. | Incomplete oxidation of glucose takes place. |
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Yogita Ingle 4 years, 9 months ago
The ability of an element to form bonds with other atoms of the same element is called catenation.
It is the binding of an element to itself through covalent bonds to form chain or ring molecules.
Examples : Carbon is the most common element that exhibits catenation property. That means it can form long hydrocarbon chains and rings like benzene.
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Yogita Ingle 4 years, 11 months ago
i) The ratio of the sine of angle of incidence to the sine of angle of refraction is constant for a given pair of media called the refractive index.
That is,
sini/sirr = u(constant of refraction)
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