HARD
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Aqueous solution of boric acid is treated with salicylic acid. Which of the following statements is/are incorrect for the product formed in the above reaction ?

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Important Questions on The p-Block Elements

EASY
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
EASY
When a mixture of diborane and ammonia is heated, the final product is
EASY
In the structure of borax, the numbers of boron atoms and B - O - B units, respectively, are
EASY

The correct statements from below are:

(I) H3BO3 is a liquid
(II) H3BO3 forms a layer structure
(III) In H3BO3, each BO3 unit is joined by hydrogen bonds
(IV) H3BO3 is tribasic.

MEDIUM
The number of 2-centre-2-electron and 3-centre-2-electron bonds in B2H6, respectively, are:
HARD
The correct statement(s) for orthoboric acid is/are
EASY

Which of the following solution is used as washing solution for eyes to free them from microorganisms?

MEDIUM

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Boric acid is a weak acid

Reason R : Boric acid is not able to release H+ ion on its own. It receives OH- ion from water and releases H+ ion.

In the light of the above statements, choose the most appropriate answer from the options given below.

MEDIUM
Hydrolysis of BCl3 gives X which on treatment with sodium carbonate produces Y, X and Y respectively, are
MEDIUM

Identify the correct statements from the following:

(a) In Orthoboric acid, boron is in planar geometry. 

(b) In BCl3·NH3, boron has tetrahedral geometry. 

(c) Aqueous solution of borax is acidic. 

EASY
The Lewis acid strength of BBr3, BCl3 and BF3 is in the order
EASY
Al2SO43 is used for a variety of purposes but not
EASY
Identify the reaction which does not liberate hydrogen
MEDIUM
Diborane B2H6 reacts independently with O2 and H2O to produce, respectively:
HARD
Among the following, the correct statement(s) is(are)
MEDIUM
Boric acid in solid, whereas BF3 is gas at room temperature because of
EASY
The set in which compounds have different nature is: