English

Tick (√) the Correct Alternative from the Choice Given for the Following Statement. a Substance Which Can Not Sublime is

Advertisements
Advertisements

Question

Tick (√) the correct alternative from the choice given for the following statement.

A substance which can not sublime is

Options

  • iodine

  • camphor

  • sugar

  • dry ice

MCQ
Advertisements

Solution

sugar

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Physical and Chemical Changes - Multiple Choice Questions

APPEARS IN

Selina Concise Chemistry [English] Class 7 ICSE
Chapter 2 Physical and Chemical Changes
Multiple Choice Questions | Q 1

RELATED QUESTIONS

Match the columns

           column A                coulmn B 
1. A change which cannot be  easily reversed  a. man-made change 
2.A change that repeats itself at  regular  intervals b. chemical change 
3. A change that is made by humans  c. physical change 

4. A change in which the original substance cannot  be obtained 

d. periodic change 

5. A change where no  new substance is formade  e. irreversible change 
  f. slow change

State whether the following is physical or chemical changes.

shaping a piece of glass —


What are man-made changes ?


Which of the following are physical changes and which are chemical changes ?

Freezing of water


What will you take into account while identifying the following?

A chemical change in a substance.


Differentiate between a physical change and a chemical change with reference to – Formation of products.


Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.

State the conclusions which can be drawn, to represent photosynthesis as a physical or a chemical change.


Select the chemical changes from the following list of changes

Respiration in mammals.


Give the reason why the following is considered as chemical changes.

Copper carbonate on heat gives copper oxide and carbon dioxide.


Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×