Diversity In Living Organisms — Science STD 9 — Question

What is normal body temperature of cow and buffalo?

What name is given to those atoms which contain the same number of protons and electrons but different number of neutrons?

Name the process which can be used to purify an impure sample of copper sulphate.

Identify the S.I. unit of momentum in the following:
kgms^-1, ms^-1, kgms^-2, ms^-2.

The molecular formula of glucose is C₆H₁₂O₆. Calculate its molecular mass. (Atomic masses: C = 12 u; H = 1 u; O = 16 u)

Write the distribution of electrons in an atom of element whose atomic number is 18. What is special about the outermost electron shell (or valence shell) of the atom of this element?

Name the particles used by Rutherford in his experiment on the discovery of nucleus. Also state the charge on these particles.

Name one property of liquids and gases which tells us that their molecules are moving constantly.