Analyse the chemical equation given below. NaCl + AgNO 3 → AgCl + NaNO 3 Which is the ion combined with sodium ion in the first reactant NaCl ?

When silver nitrate solution is added to the sodium chloride solution, a white curdy precipitate of silver chloride is formed. Here, sodium chloride and silver nitrate interchange their ions to form new compounds. Chloride ion is combined with sodium ion in the first reactant NaCl .

Analyse the chemical equation given below. NaCl + AgNO 3 → AgCl + NaNO 3 To which metal ion, is chloride ion combined in the product?

When silver nitrate solution is added to the sodium chloride solution, a white curdy precipitate of silver chloride is formed. Here, sodium chloride and silver nitrate interchange their ions to form new compounds. Chloride ion is combined with silver ion in the product.

Arrange the chemical reactions given below in the table under the heads combination reaction, decomposition, displacement reactions and double decomposition. a) 2 KCl → 2 K + Cl 2 b) CaCO 3 → CaO + CO 2 c) 2 Hl → H 2 + l 2 d) KCl + AgNO 3 → AgCl + KNO 3 e) Mg + 2 HCl → MgCl 2 + H 2 f) 2 H 2 + O 2 → 2 H 2 O g) Mg + H 2 SO 4 → MgSO 4 + H 2 h) Na 2 SO 4 + BaCl 2 → BaSO 4 + 2 NaCl

Combination reaction: Two or more elements combine to form a compound in this type of reactions. Decomposition reaction: A compound splits to give two or more products in this type of reactions. Displacement reaction: A more reactive element replaces a less reactive element from its solution. Double decomposition reaction: Two compounds react with each other, interchange their ions to form two new compounds in this type of reaction. Combination reaction Decomposition reaction Displacement reaction Double decomposition reaction 2 H 2 + O 2 → 2 H 2 O 2 KCl → 2 K + Cl 2 Mg + 2 HCl → MgCl 2 + H 2 KCl + AgNO 3 → AgCl + KNO 3 CaCO 3 → CaO + CO 2 Mg + H 2 SO 4 → MgSO 4 + H 2 Na 2 SO 4 + BaCl 2 → BaSO 4 + 2 NaCl 2 Hl → H 2 + l 2

E M B I B E

Chemistry Standard IX Part 2>Chapter 6 - Non-Metals>Exercise 1

MEDIUM

9th Kerala Board

IMPORTANT

Earn 100

$NaCl + {AgNO}_{3} \to AgCl + {NaNO}_{3}$

Add some ammonium hydroxide to the white curdy precipitate of silver chloride. What happens to the precipitate?

Important Questions on Non-Metals

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 2>Chapter 6 - Non-Metals>Exercise 1

Analyse the chemical equation given below.

NaCl + {AgNO}_{3} \to AgCl + {NaNO}_{3}

Which is the ion combined with sodium ion in the first reactant

NaCl

?

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 2>Chapter 6 - Non-Metals>Exercise 1

Analyse the chemical equation given below.

$NaCl + {AgNO}_{3} \to AgCl + {NaNO}_{3}$

To which metal ion, is chloride ion combined in the product?

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 2>Chapter 6 - Non-Metals>Exercise 1

Analyse the chemical equation given below.

$NaCl + {AgNO}_{3} \to AgCl + {NaNO}_{3}$

Nitrate ion was with silver ion in the second reactant silver nitrate. To which metal ion is this nitrate ion combined now in the product. Are the ions interchanged here?

HARD

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 2>Chapter 6 - Non-Metals>Exercise 1

Arrange the chemical reactions given below in the table under the heads combination reaction, decomposition, displacement reactions and double decomposition.

a) $2 KCl \to 2 K + {Cl}_{2}$
b) ${CaCO}_{3} \to CaO + {CO}_{2}$
c) $2 Hl \to H_{2} + l_{2}$
d) $KCl + {AgNO}_{3} \to AgCl + {KNO}_{3}$
e) $Mg + 2 HCl \to {MgCl}_{2} + H_{2}$
f) $2 H_{2} + O_{2} \to 2 H_{2} O$
g) $Mg + H_{2} {SO}_{4} \to {MgSO}_{4} + H_{2}$
h) ${Na}_{2} {SO}_{4} + {BaCl}_{2} \to {BaSO}_{4} + 2 NaCl$