11849
Formula of a metallic oxide is \(MO.\) The formula of its phosphate will be
1 \({M_2}{\left( {P{O_4}} \right)_2}\)
2 \(M\left( {P{O_4}} \right)\)
3 \({M_2}P{O_4}\)
4 \({M_3}{\left( {P{O_4}} \right)_2}\)
Explanation:
(d) Valency of metal is \(+ 2\) by formula \(MO\) so its phosphate would be \({M_3}{(P{O_4})_2}\) because valency of \([P{O_4}]\) is \(-3\).
Chemical Bonding and Molecular Structure
11850
From the following which group of elements easily forms cation
1 \(F,\,\,Cl,\,\,Br\)
2 \(Li,\,\,Na,\,\,K\)
3 \(O,\,\,S,\,\,Se\)
4 \(N,\,\,P,\,\,As\)
Explanation:
(b) \(Li, Na\) and \(K\) are alkali metals with low ionization energy and one electron in their outermost shell so they will form cation easily.
Chemical Bonding and Molecular Structure
11851
Which type of compounds show high melting and boiling points
1 Electrovalent compounds
2 Covalent compounds
3 Coordinate compounds
4 All the three types of compounds have equal melting and boiling points
Explanation:
(a) Melting point and boiling point of electrovalent compounds are high due to strong electrostatic force of attraction between the ions.
Chemical Bonding and Molecular Structure
11852
Lattice energy of an ionic compound depends upon
1 Charge on the ion only
2 Size of the ion only
3 Packing of ions only
4 Charge on the ion and size of the ion
Explanation:
(d) The value of lattice energy depends on the charges present on the two ions and distance between them. It shell be high if charges are high and ionic radii are small.
11849
Formula of a metallic oxide is \(MO.\) The formula of its phosphate will be
1 \({M_2}{\left( {P{O_4}} \right)_2}\)
2 \(M\left( {P{O_4}} \right)\)
3 \({M_2}P{O_4}\)
4 \({M_3}{\left( {P{O_4}} \right)_2}\)
Explanation:
(d) Valency of metal is \(+ 2\) by formula \(MO\) so its phosphate would be \({M_3}{(P{O_4})_2}\) because valency of \([P{O_4}]\) is \(-3\).
Chemical Bonding and Molecular Structure
11850
From the following which group of elements easily forms cation
1 \(F,\,\,Cl,\,\,Br\)
2 \(Li,\,\,Na,\,\,K\)
3 \(O,\,\,S,\,\,Se\)
4 \(N,\,\,P,\,\,As\)
Explanation:
(b) \(Li, Na\) and \(K\) are alkali metals with low ionization energy and one electron in their outermost shell so they will form cation easily.
Chemical Bonding and Molecular Structure
11851
Which type of compounds show high melting and boiling points
1 Electrovalent compounds
2 Covalent compounds
3 Coordinate compounds
4 All the three types of compounds have equal melting and boiling points
Explanation:
(a) Melting point and boiling point of electrovalent compounds are high due to strong electrostatic force of attraction between the ions.
Chemical Bonding and Molecular Structure
11852
Lattice energy of an ionic compound depends upon
1 Charge on the ion only
2 Size of the ion only
3 Packing of ions only
4 Charge on the ion and size of the ion
Explanation:
(d) The value of lattice energy depends on the charges present on the two ions and distance between them. It shell be high if charges are high and ionic radii are small.
11849
Formula of a metallic oxide is \(MO.\) The formula of its phosphate will be
1 \({M_2}{\left( {P{O_4}} \right)_2}\)
2 \(M\left( {P{O_4}} \right)\)
3 \({M_2}P{O_4}\)
4 \({M_3}{\left( {P{O_4}} \right)_2}\)
Explanation:
(d) Valency of metal is \(+ 2\) by formula \(MO\) so its phosphate would be \({M_3}{(P{O_4})_2}\) because valency of \([P{O_4}]\) is \(-3\).
Chemical Bonding and Molecular Structure
11850
From the following which group of elements easily forms cation
1 \(F,\,\,Cl,\,\,Br\)
2 \(Li,\,\,Na,\,\,K\)
3 \(O,\,\,S,\,\,Se\)
4 \(N,\,\,P,\,\,As\)
Explanation:
(b) \(Li, Na\) and \(K\) are alkali metals with low ionization energy and one electron in their outermost shell so they will form cation easily.
Chemical Bonding and Molecular Structure
11851
Which type of compounds show high melting and boiling points
1 Electrovalent compounds
2 Covalent compounds
3 Coordinate compounds
4 All the three types of compounds have equal melting and boiling points
Explanation:
(a) Melting point and boiling point of electrovalent compounds are high due to strong electrostatic force of attraction between the ions.
Chemical Bonding and Molecular Structure
11852
Lattice energy of an ionic compound depends upon
1 Charge on the ion only
2 Size of the ion only
3 Packing of ions only
4 Charge on the ion and size of the ion
Explanation:
(d) The value of lattice energy depends on the charges present on the two ions and distance between them. It shell be high if charges are high and ionic radii are small.
11849
Formula of a metallic oxide is \(MO.\) The formula of its phosphate will be
1 \({M_2}{\left( {P{O_4}} \right)_2}\)
2 \(M\left( {P{O_4}} \right)\)
3 \({M_2}P{O_4}\)
4 \({M_3}{\left( {P{O_4}} \right)_2}\)
Explanation:
(d) Valency of metal is \(+ 2\) by formula \(MO\) so its phosphate would be \({M_3}{(P{O_4})_2}\) because valency of \([P{O_4}]\) is \(-3\).
Chemical Bonding and Molecular Structure
11850
From the following which group of elements easily forms cation
1 \(F,\,\,Cl,\,\,Br\)
2 \(Li,\,\,Na,\,\,K\)
3 \(O,\,\,S,\,\,Se\)
4 \(N,\,\,P,\,\,As\)
Explanation:
(b) \(Li, Na\) and \(K\) are alkali metals with low ionization energy and one electron in their outermost shell so they will form cation easily.
Chemical Bonding and Molecular Structure
11851
Which type of compounds show high melting and boiling points
1 Electrovalent compounds
2 Covalent compounds
3 Coordinate compounds
4 All the three types of compounds have equal melting and boiling points
Explanation:
(a) Melting point and boiling point of electrovalent compounds are high due to strong electrostatic force of attraction between the ions.
Chemical Bonding and Molecular Structure
11852
Lattice energy of an ionic compound depends upon
1 Charge on the ion only
2 Size of the ion only
3 Packing of ions only
4 Charge on the ion and size of the ion
Explanation:
(d) The value of lattice energy depends on the charges present on the two ions and distance between them. It shell be high if charges are high and ionic radii are small.
