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Column-I Column-II
I. $B - 10$ A) Flux in soldering
II. $H_{3} {BO}_{3}$ B) Thermite welding
III. ${Na}_{2} B_{4} O_{7} . 10 H_{2} O$ C) Neutron absorber
IV. $Al$ D) Antiseptic to eye infections

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I-C; II-A; III-B; IV-D

I-C; II-A; III-D; IV-B

I-C; II-D; III-A; IV-B

I-A; II-C; III-D; IV-B

answer is A.

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Detailed Solution

B - 10

….. Control rods in nuclear reactors

H_{3} {BO}_{3}

….. weak antiseptic to eye infections

{Na}_{2} B_{4} O_{7} . 10 H_{2} O

….. flux in soldering

Al

….. reductant in thermite welding

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