मराठी

What Do You Observe When H2s is Passed Through a Lead Nitrate Solution. - Chemistry

Advertisements
Advertisements

प्रश्न

What do you observe when H2S is passed through a lead nitrate solution.

एका वाक्यात उत्तर

उत्तर

When gas is passed to lead nitrate solution it also turns black.

 \[\ce{\underset{\text{(colourless)}}{Pb(NO3)2} + H2S -> \underset{\text{(Black)}}{PbS} + 2HNO3}\]   

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Practical Work - Exercise 9 (A) [पृष्ठ १४२]

APPEARS IN

सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 9 Practical Work
Exercise 9 (A) | Q 5.3 | पृष्ठ १४२

संबंधित प्रश्‍न

What do you observe when Iron nail is kept in copper sulphate solution for sometime.


MULTIPLE CHOICE QUESTIONS

Tick the most appropriate answer.

Reduction is a chemical reaction in which there is

  1. removal of hydrogen
  2. removal of oxygen
  3. addition of oxygen
  4. none of these

FILL IN THE BLANK

Negatively charged ions are called ..........


TRUE \ FALSE

Evaporation of water is a physical change. True or false ?


Write balanced chemical equations for the reactions represented by word equations in the conditions for chemical reaction.


State what you would observe when the following substance is heated in a glass test tube Copper (II) carbonate Red lead .


Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.

(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)

The spoiling of food is a chemical change which is recognized from the generation of certain ______ due to it.


Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.

(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)

Oxygen is a ______ in respiration.


Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.

Water


Give an example of a reaction where the following are involved:

Close contact


When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.


Complete and balance the following reaction:

\[\ce{CuCO3 ->[\Delta]}\]


Give a chemical test to distinguish between the following gases. 

SO2 and Cl2 


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

Zinc nitrate to nitrogen dioxide


Complete the table given below.

Heat on sodium chloride Colour imparted to flame during flame test  

Higher order Thinking question

A very hot glass on putting in cold water cracks. What does this change indicate?


_____ is the basic material to manufacture urea.


A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.

What changes do you expect?


Write the chemical reaction of baking soda with lemon.


Explain how the painting of an iron gate prevents it from rusting.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×