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Yogita Ingle 6 years ago
Chemical reactions can be classified in following types:
- Combination Reaction
Example: When magnesium is burnt in air (oxygen), magnesium oxide is formed. In this reaction, magnesium is combined with oxygen.
<i>Mg + O2 </i> →<i>2MgO</i>
<i>Magnesium + Oxygen ⇨ Magnesium oxide</i>
-
Decomposition Reaction
Example: When calcium carbonate is heated, it decomposes into calcium oxide and carbon dioxide
<i>CaCO3 </i> →<i> CaO + CO2</i>
- Displacement Reaction
Example: When zinc reacts with hydrochloric acid, it gives hydrogen gas and zinc chloride.
<i>Zn + 2HCl </i> →<i>ZnCl2 + H2</i>
- Double Displacement Reaction
Example: When solution of barium chloride reacts with the solution of sodium sulphate, white precipitate of barium sulphate is formed along with sodium chloride.
<i>BaCl2 + Na2SO4 </i> → <i>BaSO4 + 2NaCl</i>
- Oxidation and Reduction Reaction
Example: When iron reacts with air, it forms iron oxide (rust)
<i>4Fe + 3O2 </i> →<i> 2Fe2O3</i>
Dhruvi Prajapati 6 years ago
Posted by Ayushi Maheshwari 6 years ago
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Posted by Rajesh Ram 5 years, 11 months ago
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Yogita Ingle 6 years ago
Here, divisor = 9828 and dividend = 14742.
Using Euclid’s Division Algorithm,
a=bq+r
Where the value of r lies between 0 and b.
Here, a = 14742, b = 9282
If r = 1, then
14742 = 9282 × 1 + 4914
If r = 0, then
14742 = 4914
Hence, the HCF of both 14742 and 9282 will be 4914
Posted by Pooja Sahu 6 years ago
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Meghna Thapar 5 years, 11 months ago
An algorithm is a set of instructions designed to perform a specific task. This can be a simple process, such as multiplying two numbers, or a complex operation, such as playing a compressed video file. In computer programming, algorithms are often created as functions.
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Yogita Ingle 6 years ago
10 parts exactly
we know in parallel
1/R = 1/ R₁ +1/R₂ + ................
so, for 10 parts of resistance 10 Ω each...
1/R = 1/10 + 1/10 +............10 times...
= 10 x 1/10
= 1 Ω
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Lucifer?? Morningstar?? 6 years ago
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Yogita Ingle 6 years ago
MAJOR ROLE PLAYED BY FORESTS IN THE ECONOMY OF INDIA
⇒ Forests provide us with valuable timber .
⇒ Forests provide employment to a large number of people
⇒ Forests provide watershed and this provides free clean water to humans and animals .
⇒ They also provide daily materials used by us in our lives for example :
Match boxes
Paper
Gum
Rubber
Resin
⇒ They provide for recreational activities through the watershed
FOREST ROLE IN ECOLOGY OF INDIA
⇒ Forests absorb harmful gases of carbon - dioxide from the atmosphere
⇒ They are home to 98% of the animal and insect species.
⇒ They promote biodiversity
⇒ They help to bring rainfall
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Yogita Ingle 6 years ago
A magnet magnet put in a solenoid behave like a bar magnet is the electric current flowing in the circuit is called Electromagnet
It increase the strength by following condition
1.) Increase the number of stunning
2.) more current should be passed
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