Question

A science teacher soaked arhar dal in water for few hours and put 2 ml of solution each into 4 test tubes and asked 4 students to test it for the presence of adulterant metanil yellow. Student A put water into it, student B put HCl into it, student C put NaOH into it and student D put alcohol into it. The student who get the correct result is:

a) Student D
b) Student A
c) Student B
d) Student C ​

Answer 1

Answer:

Student B will get the correct result.

Answer 2

Answer:

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