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The half-life period for the first order reaction is 1.7 hrs. How long will it take for 20% of the reactant to disappear?
Concept: Integrated Rate Equations
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
Describe anomalous behaviour of fluorine with the other elements of group 17 wilh reference to :
(a) Hydrogen bonding
(b) Oxidation state
(c) Polyhalide ions
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.
Concept: P - Block Group 17 Elements >> Chlorine
What happens when thin copper leaves are thrown in jar containing chlorine?
Concept: P - Block Group 17 Elements >> Chlorine
What is the action of chlorine (Cl) on the following:
Cold and dilute caustic soda
Concept: P - Block Group 17 Elements >> Chlorine
What is the action of chlorine (Cl) on the following:
Hot and concentrated caustic soda
Concept: P - Block Group 17 Elements >> Chlorine
What is the action of chlorine (Cl) on the following:
Potassium bromide solution
Concept: P - Block Group 17 Elements >> Chlorine
Write electronic configuration and two uses of neon. (Z = 10)
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements
Arrange the following oxyacids of chlorine - HClO, HClO2, HClO3, and HClO4 with respect to increasing order of oxidizing power.
Concept: P - Block Group 17 Elements >> Chlorine
Write any two uses of Chlorine.
Concept: P - Block Group 17 Elements >> Chlorine
Write the electronic configuration of the following element:
Krypton (Z = 36)
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements
What is the action of chlorine on CS2
Concept: P - Block Group 17 Elements >> Chlorine
Answer the following.
What is the action of chlorine on Excess NH3.
Concept: P - Block Group 17 Elements >> Chlorine
Write any ‘four points’ of difference between fluorine and other halogens.
Concept: P - Block Group 17 Elements >> Anomalous Behaviour of Fluorine
Which of the following compounds of chlorine is used as refrigerant?
Concept: P - Block Group 17 Elements >> Chlorine
Which of the following has the highest electron gain enthalpy?
Concept: Occurrence of Elements of Groups 16, 17 and 18
Ozone layer is depleted by ______.
Concept: Oxygen and Compounds of Oxygen
In interhalogen compounds, which of the following halogens is never the central atom?
Concept: Chemical Properties of Elements of Groups 16, 17 and 18
Answer the following.
Name two gases which deplete ozone layer.
Concept: Oxygen and Compounds of Oxygen
