Which is the false statement about c-14? a. it is a stable isotope. b. it is a radioactive isotope. c. it is present in all living things. d. it is used to calculate the age of remains.

Answer : The false statement is, (A) It is a stable isotope.

Explanation:

Isotope : It is defined as the element that have the same number of protons but have the different number of neutrons of each of the atom.

Carbon has three isotopes which are carbon-12, carbon-13 and carbon-14.

Carbon-14 is an unstable isotope which is radioactive isotope and it is present in all the living things.

Carbon-14 is used to calculate the age of of remains.

Hence, the false statement is, (A) It is a stable isotope.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2