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Raman Upadhyay 5 years, 5 months ago
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Liv 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
pH stands for potential of Hydrogen. It represents the ratio of Hydronium ions (H3O) to Hydroxide ions (OH). It is a measure of acidity and alkalinity of a solution. The pH scale usually ranges from 0 to 14.
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Yogita Ingle 5 years, 5 months ago
Five problems faced by road transport in India are given below :
(a) Volume of traffic and passengers is very large.
(b) Road network is inadequate.
(c) Half the roads are unmetalled, which limits their usage in rainy seasons.
(d) National highways too are inadequate.
(e) Roadways are highly congested in cities and most bridges and culverts are old and narrow
Posted by Aaradhana Kumar 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The categories of contraceptive methods are:
- Barrier method (Condoms)
- Surgical method
- Withdrawal method
- Calendar method
- Hormonal method
- IUCD/Copper T/Loop
Two advantages of adopting preventive methods are:
- Helps in maintaining health of women.
- Helps in preventing STDs especially AIDS.
- Helps in birth control.
- Parents can give more attention to children.
Posted by R.Kamalee R.Kamalee 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Acids when dissolved in water dissociate to form hydronium ion.
HCl(g) → H+(aq) + Cl-(aq)
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Nandini Dhingra 5 years, 5 months ago
through
; the higher the heading level number, the greater its importance — therefore
tag defines the most important heading, whereas the
tag defines the least important heading
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Posted by Devansh Pandey 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The female figures as an allegory of the nation:
- Artists found a way out to represent a country in the form of a person.
- Then nations were portrayed as female figures.
- The female figure was chosen to personify the nation did not stand for any particular woman in real life.
- It gave the abstract idea of the nation a concrete form.
- Thus, the female figure became an allegory of the nation.
- During the French Revolution artists used the formal allegory to portray idea such as Liberty, Justice and the Republic.
Posted by Ankush Pathak 5 years, 5 months ago
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Dadapeer Doddamani 5 years, 3 months ago
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Rahul Ak Ak 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Let us assume that √3 is a rational number.
then, as we know a rational number should be in the form of p/q
where p and q are co- prime number.
So,
√3 = p/q { where p and q are co- prime}
√3q = p
Now, by squaring both the side
we get,
(√3q)² = p²
3q² = p² ........ ( i )
So,
if 3 is the factor of p²
then, 3 is also a factor of p ..... ( ii )
=> Let p = 3m { where m is any integer }
squaring both sides
p² = (3m)²
p² = 9m²
putting the value of p² in equation ( i )
3q² = p²
3q² = 9m²
q² = 3m²
So,
if 3 is factor of q²
then, 3 is also factor of q
Since
3 is factor of p & q both
So, our assumption that p & q are co- prime is wrong
hence,. √3 is an irrational number
Posted by Vikshit Kumar 5 years, 4 months ago
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Posted by Tanveer Singh Chauhan 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
An oxidizing agent (oxidant), gains electrons and is reduced in a chemical reaction. It is also known as electron acceptor. The oxidizing agent is usually in one of its higher possible oxidation states as it will gain electrons and be reduced.
Examples of oxidizing agents are:
- potassium nitrate
- halogens
- nitric acid
A reducing agent (reductant), loses electrons and is oxidized in a chemical reaction. It is typically in one of its lower possible oxidation states and is known as an electron donor. A reducing agent is oxidized because it loses electrons in the redox reaction.
Examples of reducing agents are:
- formic acid
- the earth metals
- sulfite compounds
Lucifer ? Morningstar? 5 years, 5 months ago
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Vikshit Kumar 5 years, 5 months ago
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