Valency of hydroxide ($OH^-$) is —

এই অধ্যায়ের আরও প্রশ্ন

• C-05-Q050Valency of phosphonium () is —
• C-05-Q051The numbers of atoms or radicals in a molecule are written in the formula as —
• C-05-Q052Chemical formula of nitrogen molecule is —
• C-05-Q053Chemical formula of ozone is —
• C-05-Q054Iron is written as —
• C-05-Q055Helium is expressed as —
• C-05-Q056Valency of Al = 3 and O = 2; the formula of aluminum oxide is —
• C-05-Q057Formula of calcium chloride (Ca = 2, Cl = 1) is —
• C-05-Q058Formula of magnesium phosphate (Mg = 2, = 3) is —
• C-05-Q059Formula of ammonium phosphate is —