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The boiling and melting points of carboxylic acids depend on :

The Bohr orbit radius for the H-atom (Z=1) is approximately 0.53Å. The radius for the first excited state orbit is:

The blue print process involves the use of

The blue coloured mineral 'Lapis Lazuli' which is used as a semi-precious stone is a mineral of the following class

The blue complex ion formad on addition of conc. NH_4OH solution to a Cu^(2+) salt solution is :

The blue coloured mineral 'Lapis Lazuli' used as semi precious stone is :

The blue colour produced on adding hydrogen peroxide to acidified K_2Cr_2O_7 is due to the formation of

The blue coloured gas is:

The blue colour produced on adding H_2O_2 to acidified K_2Cr_2O_7 is due to the formation of :

The blue colour of the sky is due to .......

The blue colour obtained by the addition of excess dil. NH_(4)OH to an aqueous solution of a salt containing copper is due to the presence of :

The blue colour of liquid ammonia solutions of alkali metals is mainly due to :

The blue colour is obtained when a copper wire is immersed in AgNO_(3) solution, it is due to formation of

The blood red colour obtained in the detection of nitrogen and sulphur together in an organic compound in Lassaigne's test is due to

The blocks of Mg metal are often strapped to the steel hulls of ocean going ships in order to

The blood buffers are most often involed in stabilizing the pH in presence of metabolically produced:

The bleeding from a wound is stopped by the application of ferric chloride as

The blistered appearance of Cu obtained from the reverberatory furnace is due to evolution of

The bleaching action of the Bleaching powder is due to liberation of

The bleaching action of SO_(2) is temporary but that of Cl_(2) is permanent-why?

Bleaching action of H_2O_2 is due to its ---- character .

The bleaching action of bleaching powder is due to the formation of

The bleaching action ofbleaching powder is due to the formation of:

The black oxide of copper (CuO) in attacked by moisture and carbon dioxide in air and forms a green film of :

The bivalent metal ion having maximum paramagnetic behaviour among the first transition series elements is

The biodegradable polymer is ………….

The bite of honey - bee inject into our body

The bivalent metalion having maximum paramagnetic behavior among the first transition series element is

The biodegradable polymer among the following is

The biochemical reaction by using urease enzyme is ..

The binding energy of an element is 64 MeV . If BE/nucleon is 6.4 the number of nucleons are :

The binding energy of ._(8)O^(16) is 127 MeV. Its binding energy per nucleon is

The binaphthol (Bnp) is:

The bimolecular reaction is represented by :

The bicabonates of group 2 metals are

The biggest ion is:

The beta- decay of a radioactive element results in formation of its :

The beta and alpha glucose have different specific rotations. When either is dissolved in water , their rotation changes until the same fixed value results. This is called

The beta and alpha glucose have different specific rotations. When either is dissolved in water, their rotation changes until the same fixed value results. This is called

The best yield of product 'X' can be obtained by using which one of the following sequence of reagents and reactants X=CH_3-C-=C-oversetoverset(OH)(|)CH-CH(CH_3)_2

The beta-decay of""_(11)^(24)Na produces in isotope of

The best source of vitamin A is

The best source of vitamin C is

…...... is the precursor of vitamin-A.

Vitamin C is a :

The best source of vitamin A is :

The best reagent to convert pent-3-en-2-ol into pent-3-en-2-oneis

The best reagent for the preparation of pure C_2H_5Cl from ethanol is

The best reagent for converting 2-phenylpropanamide into 2-phenylpropanamine is _____________ .

The best reagent for converting 2-phenylpropanamide into 2-phenylpropanamine is