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Chemistry-

General

Easy

Question

Sulphide mineral + $CN to the power of minus rightwards arrow with straight O subscript 2 on top open square brackets M left parenthesis CN right parenthesis subscript 2 close square brackets to the power of minus 2 open square brackets M left parenthesis CN right parenthesis subscript 2 close square brackets to the power of minus plus Zn not stretchy rightwards arrow open square brackets Zn left parenthesis CN right parenthesis subscript 4 close square brackets to the power of 2 minus end exponent plus 2 M$ M
can be

Mg, Ag, Au
Ag, Au
Pt, Au
Pt, Ag

The correct answer is:
Ag, Au

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The adjoining figure gives the road plan of lanes connecting two parallel roads AB and FJ Aman walking on the road AB takes a turn at random to reach the road FJ It is known that he reaches the road FJ from $O$ by taking a straight line The chance that he moves on a straight line from the road AB to the road FJ is.

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From the figure AOC=

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