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CBSE Class 10 Answered

what are permanent magnets ?
Asked by rusuishika | 24 Aug, 2020, 08:05: PM
answered-by-expert Expert Answer
Magnets which possess higher retentivity and coercivity and retain the magnetic field for longer period are called permanent magnets. Example. Alnico, Nipermag, Steel.
Answered by Utkarsh Lokhande | 24 Aug, 2020, 08:33: PM
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CBSE 10 - Science
What do you mean by internet  
Asked by kumaraditya26493 | 09 May, 2023, 08:53: AM
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CBSE 10 - Science
Al + H2SO4 ➡️ Al2(SO4)3 + H2O + SO2⬆️ balance the equation.
Asked by shivalaxmi0205 | 12 Apr, 2023, 05:47: PM
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CBSE 10 - Science
give equations for reactions when aluminium reactd with oxygen to form aluminium oxide
Asked by shivalaxmi0205 | 12 Apr, 2023, 05:40: PM
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CBSE 10 - Science
give equations for the reaction of zinc is treated with sulphuric acid.
Asked by shivalaxmi0205 | 11 Apr, 2023, 08:28: PM
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CBSE 10 - Science
give equations for the reaction of calcium oxide is dissolved in water.
Asked by shivalaxmi0205 | 11 Apr, 2023, 08:27: PM
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CBSE 10 - Science
give equations for the reaction of potassium chlorate is heated.
Asked by shivalaxmi0205 | 11 Apr, 2023, 08:27: PM
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CBSE 10 - Science
Write the word equation to chemical equation and balance the following : (i) Sodium + Chlorine -> Sodium Chloride (ii) Hydrogen + Oxygen -> Water (iii) Hydrogen + Chlorine -> Hydrogen Chloride (iv) Aluminium + Hydrogen Chloride -> Aluminium Chloride + Hydrogen
Asked by susrisangita792 | 04 Apr, 2023, 08:43: AM
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CBSE 10 - Science
water is in the form of H2O, and from the equation it is clear that concentration of hydrogen is more in water, since, thier are 2 atoms of hydrogen in a single molecule, my main question was, why water is not flammable? as liquid version of hydrogen is used as fuel in space shuttle, which is combined with oxygen, and in water, both are present. Please reply. I am having this doubt from long time.
Asked by jttf0421 | 23 Mar, 2023, 11:00: PM
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CBSE 10 - Science
The apex consumer is  a) Eagle  b) Frog  c) Snake  d) Grasshopper
Asked by anubhutiupadhaya | 20 Mar, 2023, 02:56: PM
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CBSE 10 - Science
So water is in the form of H2O, and from the equation it is clear that concentration of hydrogen is more in water, since, thier are 2 atoms of hydrogen in a single molecule, my main question was, why water is not flammable? as liquid version of hydrogen is used as fuel in space shuttle, which is combined with oxygen, and in water, both are present.
Asked by jttf0421 | 19 Mar, 2023, 08:19: PM
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