CHEMISTRY CH14 Acids, Bases and Salts — Science STD 9 — Question

Animals which possess notochord are called as …………………

A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of ______.

Sonar is a device that uses to measure the distance, direction and speed of the underwater objects.

In which mode of transfer of heat, molecules pass on heat energy to neighbouring molecules without actually moving from their positions?

Noble gases are placed in the _______ group in the modern periodic table.

Which of the following compounds has melting and boiling points higher than covalent compounds but lower than ionic compounds?

Under which of the following conditions a concave mirror can form an image larger than the actual object?

Statement A: Uniform circular motion is a case of accelerated motion
Statement B: In third equation of motion we do not have the term time

Human beings cannot hear …………………

Water vascular system is found in ______.