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Ask QuestionPosted by Akash Rai 5 years, 10 months ago
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Akshit Parihar 5 years, 10 months ago
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Grahul 📒🎒📓📔🙇🙇🙇 Rahul 5 years, 10 months ago
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Posted by Class 12 5 years, 10 months ago
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Rani Mishra ??? 5 years, 10 months ago
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Posted by Akash Rai 5 years, 10 months ago
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Grahul 📒🎒📓📔🙇🙇🙇 Rahul 5 years, 10 months ago
Meghna Thapar 5 years, 10 months ago
Difference between soaps and detergents:
|
Soaps |
Detergents |
|
(i)Soaps are biodegradable.
(ii) Soaps have relatively weak cleansing action. |
(i) Detergents are not biodegradable. (ii) Detergents have a strong cleansing action. |
Posted by Akash Rai 5 years, 10 months ago
- 2 answers
Yogita Ingle 5 years, 10 months ago
| Self-Pollination | Cross-Pollination |
| Transfer pollen grains from the anther to the stigma of the same flower. | Transfer pollen grains from the anther to the stigma of the different flower. |
| This process can take place either in the same flower or another flower of the same plant. | This process can take place between two flowers on different plants. |
| It occurs in the flowers which are genetically same. | It occurs between flowers which are genetically different. |
| Occurs only in perfect flowers. | Occurs both in perfect or imperfect flowers. |
| Causes homogenous conditions in progenies. | Causes heterozygous condition in progenies. |
| Self-pollination increases genetic uniformity and decreases genetic variation. | Cross-pollination decreases genetic uniformity and increases genetic variation. |
| Causes inbreeding. | Causes outbreeding. |
| Reduces the gene pool. | Maintains the gene pool. |
| Produces limited amounts of pollen grains. | Produces large amounts of pollen grains. |
| In self-pollination, both the stigma and anther mature at the same time. | In cross-pollination, both the stigma and anther mature at the different time. |
| Transfers few numbers of pollen. | Transfers large numbers of pollen. |
Posted by Akash Rai 5 years, 10 months ago
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Teen Learner 5 years, 10 months ago
Posted by Akash Rai 5 years, 10 months ago
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Grahul 📒🎒📓📔🙇🙇🙇 Rahul 5 years, 10 months ago
Yogita Ingle 5 years, 10 months ago
A good fuel is one which has the following characteristics:
a) It has a high calorific value
b) It has a proper ignition temperature
c) It burns without giving out any smoke or harmful gases
d) It burns smoothly and does not leave behind much ash after burning
e) It is cheap, easily available, easy to handle, safe to transport and convenient to store.
Teen Learner 5 years, 10 months ago
Posted by Akash Rai 5 years, 10 months ago
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Posted by Akash Rai 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
| Ethanol | Ethanoic acid |
| The functional group in ethanol is -OH alcohol. | And functional group in ethanoic acid is –COOH carboxylic acid |
| It has sweet odour |
It has pungent odour |
| It does not react with Sodium bicarbonate (NaHCO₃) | It reacts with Sodium bicarbonate (NaHCO₃) releasing CO2 gas. |
| It does not change the colour of blue litmus paper. | It can change the colour of blue litmus to red |
Teen Learner 5 years, 10 months ago
Posted by Akash Rai 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
The limitations that nerve impulses have are as follows:
1) The impulses can move only in one direction. This is because the nerves are structured to allow unidirectional flow.
2) The electrical impulses are quite short acting. The message is only sent in the presence of the stimulus.
Posted by Teen Learner 5 years, 10 months ago
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Aadya Singh 5 years, 10 months ago
Aadya Singh 5 years, 10 months ago
Teen Learner 5 years, 10 months ago
Aadya Singh 5 years, 10 months ago
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Aadya Singh 5 years, 10 months ago
Class 12 5 years, 10 months ago
Aadya Singh 5 years, 10 months ago
Posted by Hitesh Kumar 5 years, 10 months ago
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Meghna Thapar 5 years, 10 months ago
Baking powder is mixed with the flour. When water is added to this flour to make dough, baking powder undergoes a chemical reaction during which carbon dioxide gas is produced. This carbon dioxide gas gets trapped into the dough and bubbles out which causes the cake to rise making it soft and spongy.
Posted by Arun Baliyan 5 years, 10 months ago
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Meghna Thapar 5 years, 10 months ago
Nuclear energy is generated by nuclear fission process.
When slow moving neutron are made to strike the atom of a heavy element 25392U, a reaction takes place and this reaction is known as nuclear fission.
Posted by Rishabh Dubey 5 years, 10 months ago
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Meghna Thapar 5 years, 10 months ago
Magnalium is an aluminium alloy with 5% magnesium and 95% aluminum. Magnalium is lighter and more workable than aluminum so it is used in making metal mirrors and scientific instruments.
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Grahul 📒🎒📓📔🙇🙇🙇 Rahul 5 years, 10 months ago
1Thank You