Question

Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)

A student was instructed by the teacher to prepare and collect ammonia gas in the laboratory by using aluminium nitride. The student had set up the apparatus as shown in the diagram below. Study the given diagram and answer the following questions:

State the terms for the following:

Choose the letters L, M, N, O & P to match the description (a) to (c) given below: [L – Ammonia, M – Nitrogen, N – Hydrogen sulphide, O – Hydrogenchloride gas, P – Nitrogen dioxide] (a) When this gas comes in contact with ammonia dense white fumes are seen. (b) The gas that turns moist lead acetate paper silvery black. (c) The gas produced on heating lead nitrate.