P-2 Animal Classification — Science STD 10 — Question

An acid which can decolourise purple coloured potassium permanganate solution is:

Galvanisation is a method of protecting iron from rusting by coating it with a thin layer of __________.

Citric acid used in production of beverages, toffees, chocolates is obtained by fermentation of …….. by Aspergillus niger.

The chemical which is not required for the preparation of soap in the laboratory is:

Which of the following set of elements is written correctly in the order of their increasing metallic character?

In Mendeleev's periodic table, gaps were left for the elements to be discovered later on. An element which found a vacant place in the periodic table later on is:

Vegetative propagation refers to the formation of new plants from the following existing organs of the old plants:

The animals called predators have: