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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Important Questions for Chemistry

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Chemistry
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Answer the following.

What is the action of bromine on magnesium metal?

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

How is dioxygen prepared in the laboratory from KClO3?

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxygen and Compounds of Oxygen

Answer the following.

Give two reactions showing the oxidising property of concentrated H2SO4.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

Answer the following.

Distinguish between rhombic sulfur and monoclinic sulfur.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

Acidic strength of halogen acids increases in the order of _______.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

Sulfur dioxide reacts with sodium hydroxide solution to form _______.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements

Complete the following reaction:

\[\ce{SO_{2(g)} + Cl_{2(g)} ->[Charcoal]}\] ?

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxygen and Compounds of Oxygen

Name the solution which is formed by passing sulfur dioxide in water.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxygen and Compounds of Oxygen

What is the oxidation state of sulphur in the following?

Sulphurous acid

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxoacids

What is oxidation state of sulphur in the following?

Sulphuric acid

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxoacids

What is oxidation state of sulphur in the following?

Peroxymonosulfuric acid

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxoacids

Write three uses of sulfuric acid.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxoacids

What happens when chlorine reacts with?

Al

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What happens when chlorine reacts with?

Na

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What happens when chlorine reacts with?

S8

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What happens when chlorine reacts with?

P4

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

Draw the structure of chloric acid.

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxoacids

What is the action of selenium on magnesium metal?

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

Explain the trends in the following atomic properties of group 16 elements:

Atomic radii

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Atomic and Physical Properties of Elements of Group 16, 17 and 18

Explain the trends in the following atomic properties of group 16 elements:

Ionisation enthalpy

Appears in 1 question paper
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Atomic and Physical Properties of Elements of Group 16, 17 and 18
< prev  801 to 820 of 1640  next > 
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