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Write balanced chemical equations for Phosphorus reacts with magnesium
Concept: p-Block elements of Group 15 Elements >> Compounds of Phosphorus
Write balanced chemical equations for Flowers of sulphur boiled with calcium hydroxide
Concept: p-Block elements of Group 15 Elements >> Compounds of Phosphorus
Write balanced chemical equations for Action of ozone on hydrogen peroxide.
Concept: p-Block elements of Group 15 Elements >> Compounds of Phosphorus
What is Nessler’s reagent?
Concept: p-Block elements of Group 15 Elements >> Ammonia
Explain the geometry of [Cu(NH3)4]2+ on the basis of hybridisation [ At. No. Cu = 29 ].
Concept: Concept of Group 15 Elements
What are neutral oxides?
Concept: P - Block Group 16 Elements >> Simple Oxides
The molecular formula H2S2O2 represents which oxoacid?
- Hydrosulphurous acid
- Thiosulphurous acid
- Sulphuric acid
- Pyrosulphurous acid
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur
Explain the structure of sulphur dioxide.
Concept: P - Block Group 16 Elements >> Sulphur Dioxide
Write the molecular formula and structure of dithionic acid.
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur
Write molecular formula and structure of Pyrosulphuric acid
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur
Write molecular formulae and structures of the Dithionous acid
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur
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
