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Ask QuestionPosted by Yo Yo Honey Singh ? 7 years, 3 months ago
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Posted by Yo Yo Honey Singh ? 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
A mercury battery, used for hearing aids and electric watches, delivers a constant voltage of 1.35 V for long periods.
The half-reactions are
H2O (S) + H2O(l) + 2e-1 → Hg(l) + 2OH- (aq)
Zn (s) + 2OH-1 (aq) → Zn(OH)2 (s) + 2e-
Posted by Yo Yo Honey Singh ? 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Antibiotics that are effective against a wide range of gram-positive and gram-negative bacteria are known as broad spectrum antibiotics. Chloramphenicol is a broad spectrum antibiotic.
It can be used for the treatment of typhoid, dysentery, acute fever, pneumonia, meningitis, and certain forms of urinary infections. Two other broad spectrum antibiotics are vancomycin and ofloxacin. Ampicillin and amoxicillin -synthetically modified from penicillin - are also broad spectrum antibiotics.
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Yogita Ingle 7 years, 3 months ago
| Ethanol | Methanol |
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Ethanol is a type of alcohol which consists of ethyl group in its carbon skeleton. |
Methanol consists of methyl group in its carbon bond. |
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In terms of acidity, ethanol is a weak acid compared to water. |
Methanol has acidity level higher than water. |
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Ethanol has a strong, burning odor and gives out bright blue flame. |
Methanol is volatile and has a distinctive odor. It gives out bright white flame while burning. |
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Usually, ethanol is prepared by factory fermentation of food crops. |
Methanol is mostly produced via synthetic processes. |
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Ethanol is the main ingredient in alcoholic beverages. |
Since methanol is highly toxic it is not at all suitable for consumption. It is generally used in the production of chemicals like formaldehyde, etc. |
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Yogita Ingle 7 years, 3 months ago
The bond order shows the number of chemical bonds present between a pair of atoms. For instance, the bond order of diatomic nitrogen N≡N is 3 and bond order between the carbon atoms in H-H≡C-H is also three.
The Bond Order Formula can be defined as half of the difference between the number of electrons in bonding orbitals and antibonding orbitals.
Bond Order = 1/2 [Nb - Na]
Where,
Nb is the number of bonding electrons
Na is the number of antibonding electrons
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Yogita Ingle 7 years, 3 months ago
This scattering of a beam of light by the particles of a colloid is called the Tyndall effect. When we apply torch light on a galss of milk then the path of the light becomes visible but it is not so in case of water because in milk light is scattered by its very fine particles.
Tyndall effect can be observed when sunlight passes through the canopy of a dense forest. In the forest, mist contains tiny droplets of water, which act as particles of colloid dispersed in air.
Posted by Sarvottam Nj 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Gabriel phthalimide synthesis produces primary amines only without the traces of secondary or tertiary amines. So, this methodis preferred for the synthesis of primary amines.
Gabriel phthalimide synthesis is chosen because only 1 ° amines are formed.
This synthesis does not form 2° or 3° amines. Therefore, a pure 1° amine could be formed. Hence, Gabriel phthalimide synthesis is chosen for the synthesis of primary amines.
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