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HSC Science (Electronics) १२ वीं कक्षा - Maharashtra State Board Important Questions

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Write the molecular and structural formulae of Dithionous acid

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur

Write chemical reactions for different steps in the manufacture of sulphuric acid by lead chamber process. Draw the structure of phosphorous pentachloride

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Sulphuric Acid

Explain the following properties of group 16 elements :
1) Electro negativity
2) Melting and boiling points
3) Metallic character
4) Allotropy

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: Concept of Group 16 Elements

What are oxides?  Write different types of oxides with one example each.

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Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Simple Oxides

Write structure and molecular formula for the following compounds:
a. Orthophosphoric acid 
b. Sulphurous acid

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Sulphuric Acid

Write the formula for pentaamminechlorocobalt (III) sulphate. 

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Sulphuric Acid

Write uses of sulphur.

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur

Write the reaction of conc. H2SO4 with sugar. What is the role of H2SO4 in this reaction?

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Sulphuric Acid

Explain anomalous behaviour of oxygen in group 16 with respect to:

  1. Atomicity
  2. Magnetic property
  3. Oxidation state
Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Anomalous Behaviour of Oxygen

Write two uses of dioxygen.

Appears in 1 question paper
Chapter: [7.02] Group 16 Elements
Concept: P - Block Group 16 Elements >> Dioxygen

Explain the structure of ClF3

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Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Interhalogen Compounds

Iodine exists as

  • polar molecular solid
  • ionic solid
  • nonpolar molecular solid
  • hydrogen bonded molecular solid
Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: Concept of Group 17 Elements

Draw structure of Chlorine trifluoride

Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Interhalogen Compounds

Write ‘four’ uses of hydrochloric acid.

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Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Hydrogen Chloride

Write chemical formula of the following oxoacids of chlorine:

a. Hypochlorous acid

b. Chlorous acid

c. Chloric acid

d. Perchloric acid

Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Oxoacids of Halogens

Draw structure of Chlorine pentafluoride

Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: Concept of Group 17 Elements

Describe anomalous behaviour of fluorine with the other elements of group 17 wilh reference to :

(a) Hydrogen bonding

(b) Oxidation state

(c) Polyhalide ions

 

Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Anomalous Behaviour of Fluorine

Arrange the following oxyacids of chlorine – HClO, HClO2, HClO3, and HClO4 with respect to Increasing order of thermal stability.

Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Chlorine

What happens when thin copper leaves are thrown in jar containing chlorine?

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Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Chlorine

What is the action of chlorine (Cl) on the following:

Cold and dilute caustic soda

Appears in 1 question paper
Chapter: [7.03] Group 17 Elements
Concept: P - Block Group 17 Elements >> Chlorine
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