Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 18

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Which among the following statements are correct?
(a) Rhombic sulphur transforms to monoclinic sulphur when heated above $369 K$ .
(b) Solution of roll sulphur in ${CS}_{2}$ , on evaporation gives the crystals of rhombic suiphur.
(c) Both rhombic and monoclinic sulphur have $S_{8}$ molecules.
(d) Both rhombic and monoclinic sulphur are soluble in carbon disulphide.

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Important Questions on The p-Block Elements

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 19

The thermal stability of hydrides of oxygen family is in order:

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 20

Gases respectively absorbed by the alkaline pyrogallol and oil of cinnamon are

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 22

When an article is bleached by

{SO}_{2}

it loses its colour. The colour can be restored by:

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 26

Which one of the following pairs of elements has nearly same (i.e., difference of only

2 - 3 {kJmol}^{- 1}

) first ionisation energies?

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 27

The relative stability of

+ 1

oxidation state progressively increases for heavier elements:

Al < Ga < In < TI

. It is due to:

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 28

The ion(s) that act/s as an oxidising agent in solution is/are:

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 30

Aluminium is more reactive than iron, but aluminium is less easily corroded than iron because:

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Alpha Question Bank for Medical: Chemistry>Chapter 18 - The p-Block Elements>Exercise 2>Q 31

Which one of the following can not be prepared in

+ 3

oxidation state by the reaction of metals with

I_{2} ?