EASY
Earn 100

The stability of +1 oxidation state increases in the sequence

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Important Questions on The p-Block Elements

HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>p-Block Elements

The number of non-ionisable protons present in the product B obtained from the following reaction is___C2H5OH+PCl3→C2H5Cl+A

A+PCl3→B

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>p-Block Elements
Aluminium is usually found in +3 oxidation state. In contrast, thallium exists in +1 and +3 oxidation states. This is due to:
MEDIUM
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The oxide, which is neither acidic nor basic is
EASY
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Match List I with List II.

List I List II
A. Reverberatory furnace I. Pig iron
B. Electrolytic cell II. Aluminium
C. Blast furnace III. Silicon
D. Zone refining furnace IV. Copper
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>p-Block Elements
Ammonia is not produced in the reaction of:
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Reaction of BeO with ammonia and hydrogen fluoride gives 'A' which on thermal decomposition gives BeF2 and NH4F. What is 'A' ?

MEDIUM
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What is inert pair effect?
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Match List I with List II

  List I   List II
A Nitrogen oxides in air I Eutrophication
B Methane in air II pH of rain water becomes 5.6
C Carbon dioxide III Global warming
D Phosphate fertilisers in water IV Acid rain

Choose the correct answer from the options given below :

MEDIUM
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Which of the following statement is incorrect?
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Chemistry>Inorganic Chemistry>The p-Block Elements>p-Block Elements
The incorrect statement among the following is /are
EASY
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On heating, LiNO3 gives how many compounds among the following?
Li2O,N2,O2,LiNO2,NO2
EASY
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Which of the following is not a d-block element?
EASY
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The delicate balance of CO2 and O2 is NOT disturbed by
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>p-Block Elements
It is because of the inability of ns2 electrons of the valence shell to participate in bonding that
MEDIUM
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Which hydride among the following is less stable?
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Which statements about Boron and its compounds, among the following are true?
(i) Boron has high density and good electrical conductivity.
(ii) B10 isotope metal borides are useful as protective shields in nuclear industry.
(iii) Borax and boric acid are used in the manufacture of glasses.
(iv) Orthoboric acid is toxic and hence not useful in antiseptic solutions.
MEDIUM
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Match List I with List II

  List I
Type of Hydride		   List II
Example
A Electron deficient hydride I MgH2
B Electron rich hydride II HF
C Electron precise hydride III B2H6
D Saline hydride IV CH4

Choose the correct answer from the options given below :

MEDIUM
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Match List-I with Match List-II

  List-I
(Metal)		   List-II
(Application)
(A) Cs (I) High temperature thermometer
(B) Ga (II) Water repellent sprays
(C) B (III) Photoelectric cells
(D) Si (V) Bullet proof vest

Choose the most appropriate answer from the options given below

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>p-Block Elements
How many five-membered and six-membered rings are present in a buckmisterfullerene C60?
EASY
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Inert pair effect is concerned with