Why do `overset(35)underset(17)" " CI and overset(37)underset(17)" " CI` have the same chemical properties? In what respect do these atoms differ?

Give reasons overset(35)underset(17)" " CI and overset(37)underset(17)" " CI do not differ in their chemical reactions.

overset(24)underset(12)" " Mg and overset(26)underset(12)" " Mg are symbols of two isotopes of magnesium. Compare the atoms of these isotopes with respect to : (i) the composition of their nuclei. (ii) their electronic configurations.

overset(24)underset(12)" " Mg and overset(26)underset(12)" " Mg are symbols of two isotopes of magnesium. Give reasons why the two isotopes of magnesium have different mass numbers.

The atoms of same element having same chemical properties but different masses are called

Why do elements in the same group have similar physical and chemical properties?

Why do elements in the same period have different physical and chemical properties? What about elements in the same group?

Assertion : All the three isotope of hydrogen have almost the same chemical properties. Reason : Isotopes differ from one another in respect of the presence of neutrons.

i] Give the IUPAC name of the following organic compounds: A. H-underset(H)underset(|)overset(H)(C)-C-=C-H B. H-underset(H)underset(|)overset(H)overset(|)(C)-overset(O)overset(||)(C)-H ii] What is the special feature of the structure of ethyne. iii] Name the saturated hydrocarbon containing two carbon atoms. iv] Give the structural formula of acetic acid.

For a reversible gaseous reaction N_(2)+3H_(2)hArr2NH_(3) at equilibrium , if some moles of H_(2) are replaced by same number of moles of T_(2) (T is tritium , isotope of H and assume isotopes do not have different chemical properties ) without affecting other parameters , then:

(a) Write the structural formula of A, B, C and D in the following sequence of reaction : CH_(3)-overset(CI)overset(|)(CH)-CH_(3)underset(KOH)overset(alc)rarrAunderset("Peroxide")overset(HBr)rarrB underset("dry ether")overset(Nal)rarrC underset("dry ether")overset(Mg)rarrD Illustrate Sandmeyer's reaction with the help of a suitable example.