मराठी

Give Balanced Equation for the Following Conversion Affected by Heat Alone on the Substance: Ammonium Dichromate to Nitrogen - Chemistry

Advertisements
Advertisements

प्रश्न

Give balanced equation for the following conversion affected by heat alone on the substance:

Ammonium dichromate to nitrogen

एका वाक्यात उत्तर

उत्तर

Action of heat on:

\[\ce{\underset{\text{[Ammonium di-chromate orange]}}{[NH4]2 Cr2O7} ->[\triangle]\underset{\text{chromic oxide [green]}}{Cr2O3} + 4H2O + \underset{\text{Nitrogen}}{N2}}\]

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Practical Chemistry - Additional Questions

APPEARS IN

विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 9 Practical Chemistry
Additional Questions | Q 3.4

संबंधित प्रश्‍न

How do the following help in bringing about a chemical change?

light.


 What are (i) positive catalysts and (ii) negative catalysts? Support your answer with one example for each of them.


Give reason .

A person suffering from acidity is advised to take an antacid.


What are oxides ? 


Match the pairs.

a. Photosynthesis i.  Tendency to lose electrons
b. Water ii.  Reactant in combustion process
c. Sodium chloride iii.  Chemical change
d. Dissolution of salt in water  iv.  Covalent bond
e. Carbon v.  Ionic bond
f. Fluorine vi.  Physical change 
g. Magnesium vii.  Tendency to form anion

Give an example of a reaction where the following are involved

Heat


Give an example of a reaction where the following are involved

Catalyst


What do you understand by precipitation reaction? Explain with examples.


Multiple choice:

Thermal decomposition of sodium carbonate will produce


Name Affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.


Give a chemical test to distinguish between the following gases. 

H2 and O2


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

Copper nitrate. 


Represent the addition of dilute sulphuric acid to zinc by means of a chemical equation. State the function of the arrow between the reactants and products.


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.


Complete the table given below.

Flame test for calcium chloride Acid used for flame test  

Differentiate between the following:

Neutralization reaction and a precipitation reaction.


Which of the following is not an “element + element → compound” type reaction?


The percentage composition of Nitrogen in Ureas is ______.


What are the chemical reactions that occur in everyday life?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×