English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 6

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

Advertisements
Advertisements

Question

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

Short/Brief Note
Advertisements

Solution

  1. Sugar is basically Sucrose.
  2. The molecular formula of Sugar is C12 H22O11 (or) C12(H2O)11.
  3. When sugar is heated, it loses all water molecules and decomposes to carbon.
  4. Chemical change;
  5. Irreversible change
shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Changes Around Us - Evaluation [Page 40]

APPEARS IN

Samacheer Kalvi Science - Term 2 [English] Class 6 TN Board
Chapter 3 Changes Around Us
Evaluation | Q VI. 4. | Page 40

RELATED QUESTIONS

How would you show that setting of curd is a chemical change?


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

light.


Complete and balance the following chemical equations

NaCI + `AgNO_3`  `→`


Give reason.

Acidic soil is treated with quick lime.


MULTIPLE CHOICE QUESTIONS

Tick the most appropriate answer.

 Which one of the following alters the rate of the chemical reaction without itself undergoing any change?

  1. temperature and Pressure
  2. concentration of reactants
  3. presence of catalyst
  4. none of these

What are the characteristics of a chemical reaction ? A chemical reaction is characterised by an irreversible change in which a new substance is formed.


How is a strong electrolyte different from a weak electrolyte?


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

Potassium fluoride


When electric current is passed through acidulated water ______ of water takes place.


Give an example of the following chemical change.

Two gases combine to form white solid


State the type of reactions for the following represent and balance the ones that are not balanced.

Cl2 + 2KBr → 2KCl + Br2 


Distinguish by heating the following in dry test tubs.

Ammonium Chloride and iodine.


Distinguish by dilute sulphuric acid.

Copper and magnesium?


Give reason for the following:

Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts is unnoticeable.


Complete the table given below.

Addition of dil. H2SO4 to zinc  Test for gas evolved  

True or False. If false, give the correct answer.

Taking a glass of water and freezing it by placing it in the freezer is a chemical change.


Chemical change is a temporary change.


The chemical name of baking soda is sodium bicarbonate.


Which is used as a catalyst during the process of hydrogenation of oils?


Collect information about the types of fuels used for cooking in your area. Discuss with your teachers/parents/others which fuels are less polluting and why.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×