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Which of the following tetrahalides does not exist?

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Important Questions on p- Block Elements

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Which of the following oxide cannot be used as reducing agent?
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The element that shows greater ability to form - multiple bonds is:
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The correct set of neutral oxides among the following are
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Identify (P) and (Q) in the following reaction:
2CH3Cl+Si 570 KCu powderPH2OQStraight chain polymer
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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

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More than four bonds are made by how many elements in the carbon family?
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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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What would be the product of following reaction SiCl4 Excess of H2O ? (Major Product)
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Which element among the following can react with steam?
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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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Identify the incorrect statement from the following
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Pb3O4+4HNO32 PbNO32+PbO2+2H2O Which is TRUE about the lead ions in Pb3O4?
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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.

MEDIUM
Which one of the following elements reacts with steam?
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Which of the following is least thermally stable -
HARD
The statement which is false among the following is
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Methane is quite stable, whereas silane is unstable because