Question

write the letter to your friends telling him about your first day in your new school​

Answer 1

Answer:

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QUESTION

A metal ‘X’ acquires a green colour coating on its surface on exposure to air.

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ANSWERS"

_____________________

(i)Identify the metal ‘X’ and name the process responsible for this change.

Ans . metal 'X'is a copper.

______________________

(ii) Name and write chemical formula of the green coating formed on the metal.

Ans .This lead to corrosion of cu metal by formation of green coating.

______________________

(iii) List two important methods to prevent the process.

Ans. 1. we should apply grease on the surface of metal time to time.

2. we should apply paint on the surface of metal.

________________________

hope it helps you

\mathcal{BE \: BRAINLY}BEBRAINLY

Answer 2

House number 1/14A,

Greenfield Colony,

New Delhi-110044

24 November 2021

Dear Friend Sam,

How are you? Hoping you are doing well and I am also good here. In your last letter, you wanted to know about my school. The name of my school is Kendriya Vidyalaya. It is in Badarpur New Delhi. it is a big school. There are more than two thousand students and thirty teachers. There are 60 rooms in the school. Fifty-eight rooms are for classes, one room is for the teachers and the other is for the Head Teacher.

The results of the school are very good. All the teachers in our school are very friendly and helpful. They are highly qualified teachers and teach us with pleasure. They love us like their own children. There is a big playground in front of the school. Where we play football ⚽. I love my school very much

No more today. Take care of yourself. With best regard to your parents.

Your loving friend,

XYZ