EASY
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Hot conc. H2SO4 acts as strong oxidising agent which of the following element is oxidised by conc. H2SO4 into two gaseous products ?

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Important Questions on The p-Block Elements

MEDIUM
What would be the product of following reaction SiCl4 Excess of H2O ? (Major Product)
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Assertion(A): The colour of old lead paintings can be restored by washing them with a dilute solution of H2O2.
Reason(R): Hydrogen peroxide reduces PbS to Pb
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The element that shows greater ability to form - multiple bonds is:
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Which of the following oxide cannot be used as reducing agent?
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Which element among the following can react with steam?
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The molecule which is NOT hydrolysed by water at 25oC is
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Pb3O4+4HNO32 PbNO32+PbO2+2H2O Which is TRUE about the lead ions in Pb3O4?
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Compound A used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound A is:
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More than four bonds are made by how many elements in the carbon family?
MEDIUM

Identify the correct statements from the following.

i) Quartz is a piezoelectric material
ii) All group 14 tetrachlorides except CCl4 are easily hydrolyzed in water.
iii) The C-C bond distance within the layer of graphite is 154pm.
iv) SiO2 is soluble in aqueous HCl solution.

HARD

Given below are two statements:
Statement I: Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame.

Statement II: Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame.

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

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The correct set of neutral oxides among the following are
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Among the following, the number of halide(s) which is/ are inert to hydrolysis is

(A) BF3
(B) SiCl4
(C) PCl5
(D) SF6

MEDIUM
Identify the incorrect statement from the following
EASY
Which of the following oxide is amphoteric in nature?
MEDIUM
The main reason that SiCl4 is easily hydrolysed as compared to CCl4 is that