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The bonds present in borazole are:
Which of the following compounds is known as inor- ganic benzene?
Borazole, B3N3H6 is related to benzene as:
In B2H6:
The structure of diborane (B2H6) contains :
In diborane, the two H – B – H angles are nearly :
The type of hybridization of boron in diborane is
In diborane,
On hydroloysis, diborane produces
Boric acid has a polymeric layer structure in which planar BO3 units are joined by
Boric acid is prepared from borax by the action of :
An aqueous solution of boric acid is found to be weakly acidic in nature. This acidic character arises due to the following reasons.
H3BO3 is:
Boric acid H3BO3 and BF3 have the same number of elec- trons. The former is a solid and the latter is a gas. The reason is:
What happens when a mixture of cobalt oxide and borax is heated in a flame on a loop of platinum wire ?
Borax bead test is responded by:
The number of OH units directly linked to boron atoms in Na2B4O7.10H2O is:
Na B O .10H O Na B O X NaBO B O Y z D ¾¾® ¯ D + 39. (S) Borax is used as a cleansing agent because on dissolv- ing in water, it gives:
Na B O .10H O X Y Z D D ¾¾® ¾¾® + X, Y and Z in the reaction are (a) X Na B O , Y NaBO , Z B O = = = (b) X Na B O , Y B O , Z H BO = = = (c) X B O , Y NaBO , Z B(OH) = = = (d) X NaBO , Y B O , Z B(OH) = = =
Electropositive charcter for the elements of group 13 follows the order
The reason behind the lower atomic radius of Ga as compared to Al is
Which one of the statements is incorrect for aluminium metals?
Aluminium exhibits +3 oxidation state. As we move down the group, +1 oxidation state gets more stable. This is a consequence of
Group 13 elements show +1 and +3 oxidation states. Relative stability of +3 oxidation state may be given as (a) Tl Ga Al B In + + + + + > > > > (b) B Al Ga In Tl + + + + + > > > > (c) Al Ga Tl In B + + + + + > > > > (…
The stability of +1 oxidation state increases in the se- quence: