The answer to each of the following ques...

The answer to each of the following question is a single digit integer, ranging from 0 to 9. If the correct answers to the question numbers A, B, C and D (say) are 4, 0, 9 and 2 respectively, then the correct darkening of bubbles should be as shown on the side:

`The number of metalloids present in the following elements is tin, lead, arsenic, palladium, anitmony, tungsten, bismuth, osmium, lanthanum

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The correct Answer is:

Arsenic, antinony and bismuth are metalloids.

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