हिंदी

In the Reaction Represented by the Equation: Mno2 + 4hcl → Mncl2 + 2h2o + Cl2 (I) Name the Substance Oxidised. (Ii) Name the Oxidising Agent. (Iii) Name the Substance Reduced. (Iv) Name the Reducing Agent. - Science

Advertisements
Advertisements

प्रश्न

In the reaction represented by the equation:

MnO2 + 4HCl → MnCl2 + 2H2O + Cl2

(i) name the substance oxidised.
(ii) name the oxidising agent.
(iii) name the substance reduced.
(iv) name the reducing agent.

 

Advertisements

उत्तर

(i) HCl is oxidised to Cl2.

(ii) MnOis the oxidising agent.

(iii) MnO2 is reduced to MnCl2.  

(iv) HCl is a reducing agent.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Chemical Reactions and Equations - Exercise 2 [पृष्ठ ४६]

APPEARS IN

लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 1 Chemical Reactions and Equations
Exercise 2 | Q 26.3 | पृष्ठ ४६

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

A shiny brown-coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black-colored compound formed.


Define corrosion.


What is meant by rust?


In the following reaction between lead sulphide and hydrogen peroxide:

PbS (s) + 4H2O2(aq) → PbSO4(s) + 4H2O(1)

(a) which substance is reduced?
(b) Which substance is oxidised?

 


Give an example of an oxidation reaction.


Hydrogen burns with a ______ flame and ______ sound is heard.


MULTIPLE CHOICE QUESTIONS

The process of adding oxygen to a substance is called

  1. oxidation.
  2. reduction.
  3. displacement.
  4. hydrogenation.

Identify the substances that are oxidised and the substances that are reduced in the following reaction.

\[\ce{CuO_{(s)} + H2_{(g)} -> Cu_{(s)} + H2O_{(l)}}\]


 Explain the following in term Reduction of gain or loss of oxygen with two example.


Identify from the reaction the reactants that undergo oxidation and reduction.

\[\ce{NiO + H2 -> Ni + H2O}\]


Write the equation in the ionic form

CuSO4(aq)  + Fe(s)→ FeSO4(aq) + Cu(s)

 

 


A metal oxide that is reduced by hydrogen is


Complete and balance the following equation:

\[\ce{K + H2O -> }\]________+ ________


Give two test for an oxidising agent.


Rusting of iron involves a chemical reaction which is a combination of:


Identify the reducing agent in the following reactions

`4"NH"_3 + 5"O"_2 -> 4"NO" + 6"H"_2"O"`


Identify the oxidising agent (oxidant) in the following reactions 

`"Pb"_3"O"_4 + 8"HCl" -> 3"PbCl"_2 + "Cl"_2 + 4"H"_2"O"`


Which among the following are physical or chemical change?

Curding of milk


Write a short note on oxidizing and reducing agents.


Find the oxidation number of the element in the following compound.

A1 in AlCl3


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×