(a) Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare

(i) hydrogen chloride

(ii) water

(iii) sodium hydroxide

(iv) hydrochloric acid

(b) The metal which reacts with cold water to produce hydrogen is

(i) magnesium

(ii) aluminium

(iii) calcium

(iv) iron

(c) In metal reactivity series the more reactive metals are at

(i) top

(ii) bottom

(iii) middle

(iv) none

(d) Hydrogen is responsible for producing

(i) heat and light

(ii) hydrogenated oil

(iii) fertilizers

(iv) all of the above

(e) Hydrogen is

(i) combustible

(ii) non-combustible

(iii) supporter of combustion

(iv) neither supporter nor combustible

(f) Water gas is a mixture of

(i) carbon monoxide and oxygen

(ii) carbon monoxide and hydrogen

(iii) hydrogen and oxygen

(iv) hydrogen and nitrogen

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Solution

(a)(i) hydrogen chloride
(b)(iii) calcium
(c)(i) top
(d)(iv) all of the above
(e)(i) combustible
(iv) neither supporter nor combustible
(f)(ii) carbon monoxide and hydrogen

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The heteroatoms present in

C H_{3} — C H_{2} — O — C H_{2} — C H_{2} C l

are

(i) oxygen
(ii) carbon
(iii) hydrogen
(iv) chlorine

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Q. Question 27
The heteroatoms present in

C H_{3} — C H_{2} — O — C H_{2} — C H_{2} C l

are

(i) oxygen
(ii) carbon
(iii) hydrogen
(iv) chlorine

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(b) (ii) and (iii)
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(ii) It extinguishes a burning splinter
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(iv) It has a pungent odour

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a) (i) and (iv) (b) (ii) and (iii)

Q. Match column A to column B:

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(a)(i) hydrogen chloride (b)(iii) calcium (c)(i) top (d)(iv) all of the above (e)(i) combustible (iv) neither supporter nor combustible (f)(ii) carbon monoxide and hydrogen

(a)(i) hydrogen chloride
(b)(iii) calcium
(c)(i) top
(d)(iv) all of the above
(e)(i) combustible
(iv) neither supporter nor combustible
(f)(ii) carbon monoxide and hydrogen