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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
What is the action of sodium on arsenic.
Concept: Concept of Group 15 Elements
What is the action of Magnesium on bismuth.
Concept: Concept of Group 15 Elements
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
