Asked/Added Questions From NCERT:


Question 1. Asked on :17 January 2019:07:33:21 PM

 why the intercoversion of state of matter is considered as a physical change? give three reason to justify the answer.

-Added by khushi chauhan Science » Ismatterbrounduspure

Answer:

Himanshi Verma

 The interconversion of state of matter is considered as a physical change:-

1. No formation of new compound 

2. Formula of the element /compound remain same 

3. No colour and odour change is seen

-Answered by Himanshi Verma On 19 January 2019:04:21:47 PM


Question 2. Asked on :17 January 2019:07:33:21 PM

 why the intercoversion of state of matter is considered as a physical change? give three reason to justify the answer.

-Added by khushi chauhan Science » Ismatterbrounduspure

Answer:

Himanshi Verma

 The interconversion of the states of matter is a physical change due to the following reasons: The change is reversible. A substance can revert back to its original state by physical means. ... Ice, water and water vapour are chemically H2O although they are present as solid, liquid and gaseous states respectively.

-Answered by Himanshi Verma On 03 February 2019:04:44:45 PM


Question 3. Asked on :17 January 2019:07:33:21 PM

 why the intercoversion of state of matter is considered as a physical change? give three reason to justify the answer.

-Added by khushi chauhan Science » Ismatterbrounduspure

Answer:

Himanshi Verma

  Three reasons to justify that inter conversion of states of matter is considered as physical change : 

• No formation of new compound.

• Formula of the element/compound remains same 

• No colour or odour change is seen.


-Answered by Himanshi Verma On 19 January 2019:04:22:23 PM


Question 4. Asked on :17 January 2019:07:33:21 PM

 why the intercoversion of state of matter is considered as a physical change? give three reason to justify the answer.

-Added by khushi chauhan Science » Ismatterbrounduspure

Answer:

Himanshi Verma

 The interconversion of the states of matter is a physical change due to the following reasons: The change is reversible. A substance can revert back to its original state by physical means. ... Ice, water and water vapour are chemically H2O although they are present as solid, liquid and gaseous states respectively.

-Answered by Himanshi Verma On 10 March 2019:04:52:43 PM


Question 5. Asked on :17 January 2019:07:33:21 PM

 why the intercoversion of state of matter is considered as a physical change? give three reason to justify the answer.

-Added by khushi chauhan Science » Ismatterbrounduspure

Answer:

Himanshi Verma

 The interconversion of the states of matter is a physical change due to the following reasons: The change is reversible. A substance can revert back to its original state by physical means. ... Ice, water and water vapour are chemically H2O although they are present as solid, liquid and gaseous states respectively.

-Answered by Himanshi Verma On 03 February 2019:04:45:04 PM


 

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