EASY
Earn 100

Chalcogens are elements of group:

80% studentsanswered this correctly

Important Questions on The p-Block Elements

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Which of the following noble gases is abundant in air?
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
How is fluorine isolate from fluorides using Dennis method.
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Why are the elements of Group 18 known as noble gases?
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
The alkaline earth metal sulphate, which has its hydration enthalpy greater than its lattice energy is
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Chalcogen group elements are :
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements

Consider the following radioactive decays

I. U92⟶-α90Th and

II. 90Th⟶-αRa88

In which case group of parent and daughter elements remains unchanged.

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Write true or false: Group 16 elements are called halogens.
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
In H3PO2 and H3PO3, the numbers of P-H bonds are, respectively,
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
The indicator used during the estimation of COD of a water sample is
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements

The following table represents the elements and the atomic number. With reference to this, answer the following using only the alphabets given in the table.

Element Atomic number
P 13
Q 7
R 10

Which element has an electron affinity zero?

MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
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.
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
The bond length of Br-Br in Br2 molecule is equal to
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements

Name the following element:

  • A trivalent metal used to make light tools.
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Which of the following is not a mineral of fluorine?
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements

Name the following element:

  • An alkaline earth metal present in group 2 and period 3.
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
Which of the following is wrong statement?
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements

Give a reason for the following:

Inert gases do not form ions.

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
An element belonging to Chalcogen group is
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 16 Elements
The noble gas that does not occur in the atmosphere is;