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Complete and Balance the Following Reaction: Pb(No3)2 + Ki → - Chemistry

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प्रश्न

Complete and balance the following reaction:

Pb(NO3)2 + KI →

एक पंक्ति में उत्तर

उत्तर

Pb(NO3)2 + 2KI →2KNO3 + PbI2

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अध्याय 2: Chemical Changes and Reactions - Exercise 2 (C) [पृष्ठ ३२]

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सेलिना Concise Chemistry [English] Class 9 ICSE
अध्याय 2 Chemical Changes and Reactions
Exercise 2 (C) | Q 10.2 | पृष्ठ ३२

संबंधित प्रश्न

What are chemical reactions?


Explain the following reaction with one suitable example of Displacement reaction.


Explain the following reaction with one suitable example of Double decomposition reaction.


A solution of a substance ‘X’ is used for white washing Name the substance ‘X’ and write its formula.


Give an example of a reaction where the following are involved

Electricity


Define Electrochemical reaction
Give an example 

 

 


What do you observe? When

Barium chloride is added to sodium sulphate solution


Give an example of the following chemical changes.

A reaction where colour change is noticed.


Give a chemical test to distinguish between the following gases. 

NH3 and SO2


Write your observation and a balanced equation in the case of the following substances being heated.

Zinc carbonate.


Give reason for the following:

Electrolytic decomposition of water is a reaction involving change of state.


On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

A coloured substance which leaves a black residue and evolves two gases one of which is acidic and coloured and the other neutral and colourless.


State the following reaction represent oxidation or reduction.

\[\ce{H->H+}\]


What happens when cane sugar is strongly heated? Mention any two changes in it.


Burning of paper is the best example of ______ change.


Classify each of the following, as a physical or a chemical change. Give reasons.

(a) Drying of a shirt in the sun.

(b) Rising of hot air over a radiator.

(c) Burning of kerosene in a lantern.

(d) Change the colour of black tea by adding lemon juice to it.

(e) Churning of milk cream to get butter.


Iron and rust are the same substances.


Assertion (A): Cutting paper into very small pieces is an irreversible change.
Reason (R): Physical changes are always reversible.


What is thermochemical reactions?


Define the following term:

Chemical change


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