Fill in the blanks.(a) If the valency of carbon is 4 and that of hydro

1.	Fill in the blanks.(a) If the valency of carbon is 4 and that of hydrogen is 1 then the molecular formula of methane is ………… .(b) The gas Helium, is chemically ………… .(c) There are two electrons in the outermost orbit of the magnesium atom. Hence, the valency of magnesium is ………… .(d) and ………… are isotopes of chlorine.(e) Isotopes of uranium are used as ………… in atomic reactors.
Answer» Fill in the blanks. (a) If the valency of carbon is 4 and that of hydrogen is 1 then the molecular formula of methane is ………… . (b) The gas Helium, is chemically ………… . (c) There are two electrons in the outermost orbit of the magnesium atom. Hence, the valency of magnesium is ………… . (d) and ………… are isotopes of chlorine. (e) Isotopes of uranium are used as ………… in atomic reactors.

Fill in the blanks.(a) If the valency of carbon is 4 and that of hydrogen is 1 then the molecular formula of methane is ………… .(b) The gas Helium, is chemically ………… .(c) There are two electrons in the outermost orbit of the magnesium atom. Hence, the valency of magnesium is ………… .(d) and ………… are isotopes of chlorine.(e) Isotopes of uranium are used as ………… in atomic reactors.

Answer»

Fill in the blanks.

(a) If the valency of carbon is 4 and that of hydrogen is 1 then the molecular formula of methane is ………… .

(b) The gas Helium, is chemically ………… .

(d) and ………… are isotopes of chlorine.

(e) Isotopes of uranium are used as ………… in atomic reactors.