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What is the action of dioxygen on Calcium
Concept: P - Block Group 16 Elements >> Dioxygen
The atomicity of sulphur in orthorhombic sulphur is______________ .
(a) 8
(b) 6
(c) 4
(d) 2
Concept: P - Block Group 16 Elements >> Sulphur - Allotropic Forms
Describe anomalous behaviour of oxygen as compared with other elements of group 16 with reference to -
(a) Magnetic property
(b) Oxidation state
(c) Hydrides
Concept: P - Block Group 16 Elements >> Anomalous Behaviour of Oxygen
Which of the following compounds contain S = O as well as S = S bonds?
(A) Sulphuric acid
(B) Thiosulphuric acid
(C) Sulphurous acid
(D) Thiosulphurous acid
Concept: P - Block Group 16 Elements >> Compounds of Sulphur
a. Explain the trends in the following properties with reference to group 16:
1 Atomic radii and ionic radii
2 Density
3 ionisation enthalpy
4 Electronegativity
b. In the electolysis of AgNO3 solution 0.7g of Ag is deposited after a certain period of time. Calulate the quantity of electricity required in coulomb. (Molar mass of Ag is 107.9g mol-1)
Concept: Concept of Group 16 Elements
What is molecular formula of oleum?
(a) H2SO3
(b) H2SO4
(c) H2S2O7
(d) H2S2O8
Concept: P - Block Group 16 Elements >> Sulphuric Acid
Write the electronic configuration of the following elements:
Sulphur (Z = 16)
Concept: P - Block Group 16 Elements >> Sulphur - Allotropic Forms
What is the action of concentrated sulphuric acid on phosphorous pentachloride
Concept: P - Block Group 16 Elements >> Sulphuric Acid
3.795 g of sulphur is dissolved in 100g of CS2. This solution boils at 319.81 K. What is the molecular formula of sulphur in solution? The boiling point of CS2 is 319.45 K. (Given that Kb for CS2 = 2.42 K kg mol-1 and atomic mass of S = 32)
Concept: P - Block Group 16 Elements >> Sulphur - Allotropic Forms
H2O is liquid while H2S is gas at room temperature. Explain.
Concept: P - Block Group 16 Elements >> Compounds of Sulphur
What is the action of concentrated sulphuric acid on copper
Concept: P - Block Group 16 Elements >> Sulphuric Acid
What is the action of concentrated sulphuric acid on potassium chlorate?
Concept: P - Block Group 16 Elements >> Sulphuric Acid
What is the action of dioxygen on Iron
Concept: P - Block Group 16 Elements >> Dioxygen
What is the action of dioxygen on Carbon disulfide
Concept: P - Block Group 16 Elements >> Dioxygen
Write the molecular and structural formulae of Dithionous acid
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
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
Concept: Concept of Group 16 Elements
What are oxides? Write different types of oxides with one example each.
Concept: P - Block Group 16 Elements >> Simple Oxides
Write structure and molecular formula for the following compounds:
a. Orthophosphoric acid
b. Sulphurous acid
Concept: P - Block Group 16 Elements >> Sulphuric Acid
Write the formula for pentaamminechlorocobalt (III) sulphate.
Concept: P - Block Group 16 Elements >> Sulphuric Acid
