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New answer posted

a year ago

Chemistry Class 12th

Which of the following oxoacids of sulphur contains “S” in two different oxidation states?
0 Follower 11 Views

A
alok kumar singh

Contributor-Level 10

Kindly go through the solution

 

New answer posted

a year ago

Chemistry Class 12th

Among the given oxides of nitrogen ; N2O, N2O3, N2O4 and N2O5, the number of compound / (s) having N – N bond is:
0 Follower 19 Views

A
alok kumar singh

Contributor-Level 10

Kindly go through the solution

 

New answer posted

a year ago

Chemistry Class 12th

Among the following, basic oxide is:
0 Follower 1 View

A
alok kumar singh

Contributor-Level 10

CaO – Basic Oxide

SO3 & SiO2 – Acidic oxides

New answer posted

a year ago

Chemistry Class 12th

Hydrogen has three isotopes : protium (1H), deuterium (2H or D) and tritium (3H or T). They have nearly same chemical properties but different physical properties. They differ in
0 Follower 2 Views

A
alok kumar singh

Contributor-Level 10

Isotopes are the atom of same element with different atomic mass.

New answer posted

a year ago

Chemistry Class 11th

In the metallurgical extraction of copper, following reaction is used:

FeO + SiO2 ® FeSiO3

FeO and FeSiO3

FeO and FeSiO3 respectively are.
0 Follower 7 Views

A
alok kumar singh

Contributor-Level 10

In extraction of copper from copper pyrite (CuFeS2).

FeS converted to FeO as;

2 F e S G a n g u e + 3 O 2 → Δ 2 F e O G a n g u e + 2 S O 2          

Then FeO is removed as slag by given reaction

FeO + SiO2 ®   F e   S i O 3 S l a g

New answer posted

a year ago

Chemistry Redox Reactions

Match List – I with List – II:

List – I (Oxide)                                                         List – II (Nature)

(A) Cl2O7                                     &

...more
0 Follower 10 Views

A
alok kumar singh

Contributor-Level 10

· Cl2O7 being non-metallic oxide is acidic in nature.

· Na2O being metallic oxide is basic in nature.

· Al2O3 is an amphoteric oxide

· N2O is neutral oxide

New answer posted

a year ago

Chemistry Class 11th

Match List – I with List – II:

List – I                                                                               List – II

(a) Negatively charged sol                

...more
0 Follower 1 View

A
alok kumar singh

Contributor-Level 10

Metallic suphides i.e CdS are negatively charged colloidal solution.

Starch colloid is macro molecular colloidal solution.

Fe2O3. xH2O sol is positively charged colloidal solution.

Cheese is an example of gel.

New answer posted

a year ago

Chemistry Class 12th

In the given reaction,

The number of π- electron present in the product 'p' in__________.
0 Follower 16 Views

V
Vishal Baghel

Contributor-Level 10

It is aldol condensation.

New answer posted

a year ago

Chemistry Class 12th

In the given reaction

The number of sp2 hybridised carbon(s) in compound 'X' is____________.
0 Follower 117 Views

V
Vishal Baghel

Contributor-Level 10

Number of sp2 carbon = 8

New answer posted

a year ago

Chemistry Class 12th

The number of chiral alcohol(s) with molecular formula C4H10O is__________.
0 Follower 3 Views

V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

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