52. Consider the following statements.
1. Formation of cations occurs by loss of electrons.
2. Formation of anions occurs by gain of electrons.
Which of the statement given above is/are correct?
1. Formation of cations occurs by loss of electrons.
2. Formation of anions occurs by gain of electrons.
Which of the statement given above is/are correct?
53. Bonds made of elements with large atoms are . . . . . . . .
54. What is the valency of nitrogen in NH3?
55. What is the combining power of an element?
56. The number of valence electrons in the O2- ion is
57. Because carbon is a tetrahedron and due to its covalent bonding, carbon represents . . . . . . . .?
58. The type of bond formed during the hydration of cation is
59. Study the following statements.
1. A bond formed by the transfer of electrons between atoms of the element is called ionic bond.
2. A bond formed by sharing of electrons between atoms of the elements is called covalent bond.
Which of the statements given above is/are correct?
1. A bond formed by the transfer of electrons between atoms of the element is called ionic bond.
2. A bond formed by sharing of electrons between atoms of the elements is called covalent bond.
Which of the statements given above is/are correct?
60. Select the incorrect match.
Element : Valency
Element : Valency