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01. Upto 1300 Quenstions
02. Answer Key
03. Explanations

07. The p-BLOCK ELEMENTS (XII)

188365 Which of the following halides is the most stable?

C C l_{4}

C B r_{4}

C F_{4}

C I_{4}

Explanation:

Stability of carbon tetrahalides decreases with increase in the size of halogen atom. So, $C F_{4}$ is the most stable halide among the given options.

07. The p-BLOCK ELEMENTS (XII)

188340 Which of the following compound gives oxygen on fast heating $(I) A g N O_{3}$ $(I I) C a C O_{3}$ $(I I I) P b (N O_{3})_{2}$ $(I V) N a_{2} C O_{3}$

I, I I

I, I I, I V

I, I I, I I I

I I, I I I

07. The p-BLOCK ELEMENTS (XII)

188808 Metals dissolve in liquid ammonia giving coloured solutions which are conducting in nature. The colour of the solution and reason of its conductance is

1 yellow,

N H_{4}^{+}

2 blue, ammoniated metals

3 orange,

[M (N H_{3})_{x}]^{+}

4 blue, ammoniated electron.

07. The p-BLOCK ELEMENTS (XII)

188809 $p π - d π$ bond is present in

S O_{2}

X e O_{4}

C O_{2}

4 Both

(A)

and

(B)

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07. The p-BLOCK ELEMENTS (XII)

188365 Which of the following halides is the most stable?

C C l_{4}

C B r_{4}

C F_{4}

C I_{4}

Explanation:

Stability of carbon tetrahalides decreases with increase in the size of halogen atom. So, $C F_{4}$ is the most stable halide among the given options.

07. The p-BLOCK ELEMENTS (XII)

188340 Which of the following compound gives oxygen on fast heating $(I) A g N O_{3}$ $(I I) C a C O_{3}$ $(I I I) P b (N O_{3})_{2}$ $(I V) N a_{2} C O_{3}$

I, I I

I, I I, I V

I, I I, I I I

I I, I I I

07. The p-BLOCK ELEMENTS (XII)

188808 Metals dissolve in liquid ammonia giving coloured solutions which are conducting in nature. The colour of the solution and reason of its conductance is

1 yellow,

N H_{4}^{+}

2 blue, ammoniated metals

3 orange,

[M (N H_{3})_{x}]^{+}

4 blue, ammoniated electron.

07. The p-BLOCK ELEMENTS (XII)

188809 $p π - d π$ bond is present in

S O_{2}

X e O_{4}

C O_{2}

4 Both

(A)

and

(B)

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07. The p-BLOCK ELEMENTS (XII)

188365 Which of the following halides is the most stable?

C C l_{4}

C B r_{4}

C F_{4}

C I_{4}

Explanation:

Stability of carbon tetrahalides decreases with increase in the size of halogen atom. So, $C F_{4}$ is the most stable halide among the given options.

07. The p-BLOCK ELEMENTS (XII)

188340 Which of the following compound gives oxygen on fast heating $(I) A g N O_{3}$ $(I I) C a C O_{3}$ $(I I I) P b (N O_{3})_{2}$ $(I V) N a_{2} C O_{3}$

I, I I

I, I I, I V

I, I I, I I I

I I, I I I

07. The p-BLOCK ELEMENTS (XII)

188808 Metals dissolve in liquid ammonia giving coloured solutions which are conducting in nature. The colour of the solution and reason of its conductance is

1 yellow,

N H_{4}^{+}

2 blue, ammoniated metals

3 orange,

[M (N H_{3})_{x}]^{+}

4 blue, ammoniated electron.

07. The p-BLOCK ELEMENTS (XII)

188809 $p π - d π$ bond is present in

S O_{2}

X e O_{4}

C O_{2}

4 Both

(A)

and

(B)

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Question Bank Series

01. Upto 1300 Quenstions
02. Answer Key
03. Explanations

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07. The p-BLOCK ELEMENTS (XII)

188365 Which of the following halides is the most stable?

C C l_{4}

C B r_{4}

C F_{4}

C I_{4}

Explanation:

Stability of carbon tetrahalides decreases with increase in the size of halogen atom. So, $C F_{4}$ is the most stable halide among the given options.

07. The p-BLOCK ELEMENTS (XII)

188340 Which of the following compound gives oxygen on fast heating $(I) A g N O_{3}$ $(I I) C a C O_{3}$ $(I I I) P b (N O_{3})_{2}$ $(I V) N a_{2} C O_{3}$

I, I I

I, I I, I V

I, I I, I I I

I I, I I I

07. The p-BLOCK ELEMENTS (XII)

188808 Metals dissolve in liquid ammonia giving coloured solutions which are conducting in nature. The colour of the solution and reason of its conductance is

1 yellow,

N H_{4}^{+}

2 blue, ammoniated metals

3 orange,

[M (N H_{3})_{x}]^{+}

4 blue, ammoniated electron.

07. The p-BLOCK ELEMENTS (XII)

188809 $p π - d π$ bond is present in

S O_{2}

X e O_{4}

C O_{2}

4 Both

(A)

and

(B)