Is Matter Around Us Pure? — Science STD 9 — Question

Name one pair of substances whose mixture can be separated completely by distillation.

Name the quantitity, the slope of whose graph gives:
Speed.

Name the scientist who gave the three laws of planetary motion.

Which is most active member of honey bee colony.

What type of sound waves are produced by a vibrating simple pendulum?

Karan Swiss is produced by crossbreeding between jersey and Red Sindhi.

Which of the following do not exhibit Tyndall effect?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.

Name the device or machines which convert:
Heat energy into kinetic energy (or mechanical energy).