Match the substances in coloumn A with their applications given in coloumn B.

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Solution

Following are the correct match for the given substances-
(a) (iii)
(b) (iv)
(c) (i)
(d) (v)
(e) (ii)

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Match the coloumn

Column 1	Column 2
Aluminum	Does not displace hydrogen
Copper	Used in laboratory preparation of hydrogen
Potassium	Form amphoteric oxide
Zinc	Most reactive metal
Tritium	Radioactive in nature

Match the polymers given in Column I with their main applications given in Coloumn II.

$\begin{matrix} C o l u m n I & C o l u m n I I A . B a k e l i t e & 1. & U n b r e a k a b l e c r o c k e r y B . L o w d e n s i t y p o l y e t h e n e & 2. & N o n - s t i c k c o o k w a r e s C . M e l a m i n e - f o r m a l d e h y d e r e s i n & 3. & P a c k a g i n g m a t e r i a l f o r s h o c k a b s o r b a n c e D . N y l o n - 6 & 4. & E l e c t r i c a l s w i t c h e s E . P o l y t e t r a f l u o r o e t h a n e & 5. & S q u e e z e b o t t l e s F . P o l y s t y r e n e & 6. & T y r e, c o r d s \end{matrix}$

Q. Match the substances in Column A with their applications given in Column B.

32. Match the substances in Column A with their applications given in Column B.

Column 1	Column 2
Marie Curie	Safety Lamp
John dalton	Helium
William Ram'sey	Nobel Prize Winner
Sir Humphry davy	Atomic theory

Match the substances in Column I with their applications given in Column II.

Column 1	Column 2
Crushing of an ice cube	Rust
Making of curd from milk	Physical change
Plants making their food in the presence of sunlight	Chemical change
Color of coating appearing on silver when it is exposed to atmosphere	Photosynthesis
Brown coating appears on iron when it is exposed to air and moisture	Black

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Match the substances in coloumn A with their applications given in coloumn B.

Following are the correct match for the given substances-(a) (iii)(b) (iv)(c) (i)(d) (v)(e) (ii)

Following are the correct match for the given substances-
(a) (iii)
(b) (iv)
(c) (i)
(d) (v)
(e) (ii)