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Atomic number, A transition metal X   has a configuration [Ar] 3d 4    in i...

A transition metal X   has a configuration [Ar] 3d 4    in its +3 oxidation state. Its atomic number is: (1) 25      (2) 26      (3) 22     (4) 19 Ans: 25

Acids and bases, what is the difference between acids, bases and alkalis?

what is the difference between acids, bases and alkalis?

The metal ion will have highest number of unpaired electron, Which of the m...

Which of the metal ion will have highest number of unpaired electrons: (1) Cu +                  (2)  Fe +       (3) Fe 3+                             (4) Co 2+ A

.amines, Why secondary and tertiary amine doesn''t give carbylamine reactio...

Why secondary and tertiary amine doesn''t give carbylamine reaction

Calculate the density of ethanol, A 100 gal tank contains 10 lb of water. T...

A 100 gal tank contains 10 lb of water. The tank is filled by two inlet streams, one of pure water and one of pure ethanol. The flow rate of both streams is 10 gal/min. Calculate t

Physical properties of malonic acid, Physical Properties of Malonic Acid ...

Physical Properties of Malonic Acid (a) Malonic Acid is a white crystalline solid. (b) Malonic Acid's melting point is 135°C. (c) Malonic Acid is soluble in water and alc

why -x are called deactivating o&p groups? , It can be because these group...

It can be because these group tend to decrease the electron density when attached to a benzene or other ring structure preferentially at ortho and pera position.

Standard molar entropy of formation, Q. In 1982, the International Union of...

Q. In 1982, the International Union of Pure and Applied Chemistry recommended that the value of the standard pressure p o  be changed from 1 atm to 1 bar. This change affects the

Heat rejection to the environment, A Carnot heat engine gets heat at 800 K ...

A Carnot heat engine gets heat at 800 K and rejects the waste heat to the environment at 300 K. The whole work output of the heat engine is used to drive a Carnot refrigerator that

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