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Number of moles of SnCl2 required for the reduction of K2Cr2O7 into Cr2O3 is (in acidic medium):

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Important Questions on The d- and f-Block Elements

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 26
The Ziegler-Natta catalyst used for polymerisation of ethene and styrene is TiCl4+C2H53Al, the catalysing species (active species) involved in the polymerisation is :
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 27
Which of the following raction is possible at anode?
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 28
Colourles solution of the following four salts are placed separately in four different test tubes and a strip of coper is dipeed in each one of these. Which solution will turn blue?
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 29
Cuprous chloride is obtained from cupric chloride:
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 30
Carat is a measure of :
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 31
Fulminating gold is:
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 32
Iodide of Millon's base is:
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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 33
The total spin and paramagnetism (B.M.) of ferrocyanide ion are respectively :