Testes of man occur

Testes of cockroach are present in abdomen at

Nitrogen, sulphur and halogens are tested from the sodium fusion extract of the organic compound which is commonly known as Lassaigne's extract. For preparing Lassaigen's extract, a small quanty of the organic compound is fused with sodium metal in a fusion tube. The red tube is broken in distilled water, boiled and filtered. This filtrate is known as Lassaigne's extract or sdodium fusion extract. In the process of testing elements in Lassaigne's a test, which of the following reactions do not occur.

Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid is added to test tube A. while acetic acid is added to test tube B. Amount and concentration of both the acids are same. In which test tube will the fizzing occur more vigorously and why?

The dramatic muscle growth that occurs after birth occurs by

What are the tests to know about Bilirubin?

Mantoux test is done for