Write the name of following compounds by Criss cross method:-
1.Ammonium hydroxide
2.Ammonium chloride
3. Ammonium Phosphate
4. ammonium carbonate
5.Ammonium Sulphate
6.Barium Chloride
7. Barium sulphate
8.Barium carbonate
9.Barium oxide
10.Calcium oxide
11. Calcium hydroxide
12. Calcium carbonate
13. Calcium sulphate
Answers
Answer:
(a) Potassium Chloride:
Symbol Valency
Potassium K 1+
Chlorine Cl 1-
Positive ions are written first
On interchanging the valencies
Formula = KCl_{ }KCl
(b) Sodium Bromide
Symbol Valency
Sodium Na 1+
Bromide Br 1-
Positive ions are written first
On interchanging the valencies
Formula = NaBrNaBr
(c) Potassium Nitrate
Symbol Valency
Potassium K 1+
Nitrate [[> widget id="7" <]] 1-
Positive ions are written first
On interchanging the valencies
Formula = K\left[NO_3\right]K[NO
3
]
(d) Calcium hydroxide
Symbol Valency
Calcium Ca 2+
Hydroxide OH 1-
Positive ions are written first
On interchanging the valencies
Formula = Ca\left[OH\right]_2Ca[OH]
2
(e) Calcium bicarbonate
Symbol Valency
Calcium Ca 2+
Bicarbonate [[> widget id="10" <]] 1-
Positive ions are written first
On interchanging the valencies
Formula = NO_3NO
3
(f) Sodium Bisulphate
Symbol Valency
Sodium Na 1+
Bisulphate [[> widget id="13" <]] 1-
Positive ions are written first
On interchanging the valencies
Formula = Na\left[HSO_4\right]Na[HSO
4
]
(g) Potassium Sulphate
Symbol Valency
Potassium K 1+
Sulphate [[> widget id="16" <]] 2-
Positive ions are written first
On interchanging the valencies
Formula = K_2\left[SO_4\right]K
2
[SO
4
]
(h) Zinc Hydroxide
Symbol Valency
Zinc Zn 2+
Hydroxide OH 1-
Positive ions are written first
On interchanging the valencies
Formula = Zn\left[OH\right]_2Zn[OH]
2
(i) Potassium permanganate
Symbol Valency
Potassium K 1+
Permanganate [[> widget id="21" <]] 1-
Formula = K\left[MnO_4\right]K[MnO
4
]
(j) Potassium dichromate
Symbol Valency
Potassium K 1+
Dichromate [[> widget id="24" <]] 2-
Positive ions are written first
On interchanging the valencies
Formula= K_2\left[Cr_2O_7\right]K
2
[Cr
2
O
7
]
(k) Aluminium hydroxide
Symbol Valency
Aluminium Al 3+
Hydroxide [OH] 1-
Positive ions are written first
On interchanging the valencies
Formula = Al\left[OH\right]_3Al[OH]
3
(l) Magnesium nitride
Symbol Valency
Magnesium Mg 2+
Nitride N 3-
Positive ions are written first
On interchanging the valencies
Formula = Mg_3N_2Mg
3
N
2
(m) Sodium zincate
Symbol Valency
Sodium Na 1+
Zincate [[> widget id="31" <]] 2-
Positive ions are written first
On interchanging the valencies
Formula = Na_2\left[ZnO_2\right]Na
2
[ZnO
2
]
(n) Copper [II] oxide
Symbol Valency
Copper Cu 2+
Oxide O 2-
Positive ions are written first
On interchanging the valencies
Formula = CuOCuO
(o) Copper [I] sulphide
Symbol Valency
Copper Cu 1+
Sulphide S 2-
Positive ions are written first
On interchanging the valencies
Formula = Cu_2SCu
2
S
(p) Iron [III] chloride
Symbol Valency
Iron Fe 3+
Chloride Cl 1-
Positive ions are written first
On interchanging the valencies
Formula = FeCl_3FeCl
3
(q) Iron [II] hydroxide
Symbol Valency
Iron Fe 2+
Hydroxide OH 1-
Positive ions are written first
On interchanging the valencies
Formula =Fe\left[OH\right]_2Fe[OH]
2
(r) Iron [III] sulphide
Symbol Valency
Iron Fe 3+
Sulphide S 2-
Positive ions are written first
On interchanging the valencies
Formula = Fe_2S_3Fe
2
S
3
(s) Iron [III] oxide
Symbol Valency
Iron Fe 3+
Oxide O 2-
Positive ions are written first
On interchanging the valencies
Formula = Fe_2O_3Fe
2
O
3
Answer:
1 NH3OH
2 NH3Cl
6. BACL
7 BASO4
8 BACO3
9. BA2O
10. CAO
11 CAOH2
12 CACO3
13. CASO4
Explanation: