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

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What are interhalogen compounds?

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxygen and Compounds of Oxygen

Hot and concentrated alkali NaOH reacts with chlorine to form _______.

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

Write the order of ionic character of halides with monovalent metal (M).

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Chemical Properties of Elements of Groups 16, 17 and 18

Discuss industrial method of preparation of sulfur dioxide from zinc sulfide and iron pyrites.

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Occurrence of Elements of Groups 16, 17 and 18

Write three physical properties of sulfuric acid.

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxoacids

Write any two characteristics of interhalogen compounds.

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: Oxygen and Compounds of Oxygen

Write two uses of neon.

Appears in 2 question papers
Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements

How is nitric acid prepared by Ostwald’s process?

Appears in 2 question papers
Chapter: [7.01] Group 15 Elements
Concept: p-Block elements of Group 15 Elements >> Nitric Acid

Explain the nature of zinc oxide with the help of the reactions.

Appears in 2 question papers
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Simple Oxides

Write the molecular formula and structures of the peroxy monosulphuric acid.

Appears in 2 question papers
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur

What happens when dilute sulphuric acid is treated with Fe

Appears in 2 question papers
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Sulphuric Acid

What happens when dilute sulphuric acid is treated with CaF2

Appears in 2 question papers
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Sulphuric Acid

Write the molecular and structural formulae of thiosulfuric acid.

Appears in 2 question papers
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Compounds of Sulphur

Hot and concentrated alkali NaOH reacts with chlorine to form _______.

Appears in 2 question papers
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Chlorine

Write two uses of neon.

Appears in 2 question papers
Chapter: [7.04] Group 18 Elements
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements

Write reactions involved in preparation of potassium dichromate from chrome iron ore

Appears in 2 question papers
Chapter: [8] Transition and Inner Transition Elements
Concept: K2Cr2O7: Preparation of Potassium Dichromate

Answer the following

Explain the trends in atomic radii of d block elements.

Appears in 2 question papers
Chapter: [8] Transition and Inner Transition Elements
Concept: Trends in Atomic Properties of the First Transition Series

The following ion has the maximum number of unpaired electrons.

Appears in 2 question papers
Chapter: [8] Transition and Inner Transition Elements
Concept: Oxidation States of First Transition Series

Discuss the position of d-block elements, lanthanoids and actinoids in the periodic table.

Appears in 2 question papers
Chapter: [8] Transition and Inner Transition Elements
Concept: Common Properties of d Block Elements

What are interstitial compounds?

Appears in 2 question papers
Chapter: [8.01] D-block Elements
Concept: General Properties of the Transition Elements (D-block)
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