If you
water. Dort
where the surro
Avinye
Hertest party
chand colour or a
anderem at om ditance
Properties such an shape size colors
perne die water Obrve the
and state of abstance are called i
w of the pan.
physical properties. A change in which
De any dropler of water
a substance undergoes a change in 1
physical properties is called a physical
Activity 6.5
change. A physical change is generally
reversible. In such a change no new
substance is formed
ir ramul white handling a flame,
Let us now consider the other kind
of charge
Hold uued hacksaw blade with a
air of longe. Keep the tip of the free
6.2 CHEMICAL CHANGE
od of the blade on the gas stove, Wait
A change with which you are quite
a few minutes.
familiar is the rusting of iron.
Does the colour of the up of the blade leave a piece of Iron in the open for some
c?
move the blade from the same.
Ume, It acquires a film of brownish
substance. This substance is called rust
ve the up once again after some and the process is called rusting
It get back its original colour?
(Fig. 6.2). Iron gates of parks or
farmlands, iron benches kept in lawns
vities 6.1 and 6.2 above, you and gardens, almost every article of iron,
paper and a piece of chalk kept in the open gets rusted. At home
changes in size. In Activities you must have seen shovels and spades
getting rusted when exposed to the
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In March 2005, the then Prime Minister Manmohan Singh had constituted a seven-member High Level Committee headed by former Chief Justice of Delhi High Court Rajinder Sachar to study the social, economic and educational condition of Muslims in India.The committee submitted its report in 2006 and the report was available in public domain in November 30, 2006. The 403-page report had suggestions and solutions for the inclusive development of the Muslims in India.
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