Question 8
Match the substances given in Column A with their uses given in Column B.
$\begin{matrix} A & B (i) & G o l d & (a) & T h e r m o m e t e r s (i i) & I r o n & (b) & E l e c t r i c w i r e (i i i) & A l u m i n i u m & (c) & W r a p p i n g f o o d (i v) & C a r b o n & (d) & J e w e l l e r y (v) & C o p p e r & (e) & M a c h i n e r y (v i) & M e r c u r y & (f) & F u e l \end{matrix}$

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Solution

$\begin{matrix} A & B (i) & G o l d & (d) & J e w e l l e r y (i i) & I r o n & (e) & M a c h i n e r y (i i i) & A l u m i n i u m & (c) & W r a p p i n g f o o d (i v) & C a r b o n & (f) & F u e l (v) & C o p p e r & (b) & E l e c t r i c w i r e (v i) & M e r c u r y & (a) & T h e r m o m e t e r s \end{matrix}$

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

\begin{matrix} A & B (i) & G o l d & (a) & T h e r m o m e t e r s (i i) & I r o n & (b) & E l e c t r i c w i r e (i i i) & A l u m i n i u m & (c) & W r a p p i n g f o o d (i v) & C a r b o n & (d) & J e w e l l e r y (v) & C o p p e r & (e) & M a c h i n e r y (v i) & M e r c u r y & (f) & F u e l \end{matrix}

Match the substances given in column A with their uses given in column B:

$\begin{matrix} A & B (i) & G o l d & (a) & T h e r m o m e t e r (i i) & I r o n & (b) & E l e c t r i c w i r e s (i i i) & A l u m i n i u m & (c) & W r a p p i n g f o o d (i v) & C a r b o n & (d) & J e w e l l e r y (v) & C o p p e r & (e) & M a c h i n e r y (v i) & M e r c u r y & (f) & F u e l \end{matrix}$

Question 27
Match the substances in Column A with their applications given in Column B.

Column A (Substances)	Column B (Applications)
(a) Oxygen	(i) For making crackers
(b) Copper	(ii) For disinfecting water
(c) Sulfur	(iii) all living beings inhale during breathing
(d) iron	(iv) for making electric wires
(e) Chlorine	(v) for making rails

Match the substances given in Column A with their uses given in Column B.

A		B
(i)	Gold	(a)	Thermometers
(ii)	Iron	(b)	Electric wire
(iii)	Aluminium	(c)	Wrapping food
(iv)	Carbon	(d)	Jewellery
(v)	Copper	(e)	Machinery
(vi)	Mercury	(f)	Fuel

Question 25.
Match the chemical substances given in Column I with their appropriate application given in Column II.

(a) A - (2) B - (1) C - (4) D - (3)
(b) A - (3) B - (2) C - (4) D - (1)
(c) A - (3) B - (4) C - (1) D - (2)
(a) A - (2) B - (4) C - (1) D - (3)

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Question 8 Match the substances given in Column A with their uses given in Column B. A B(i)Gold(a)Thermometers(ii)Iron(b)Electric wire(iii)Aluminium(c)Wrapping food(iv)Carbon(d)Jewellery(v)Copper(e)Machinery(vi)Mercury(f)Fuel

AB(i)Gold(d)Jewellery(ii)Iron(e)Machinery(iii)Aluminium(c)Wrapping food(iv)Carbon(f)Fuel(v)Copper(b)Electric wire(vi)Mercury(a)Thermometers