Chemistry-
General
Easy
Question
Starch-iodide paper is used for the test of
- Iodine
- Iodide ion
- Oxidising agent
- Reducing agent
The correct answer is: Iodine
Starch Iodide paper is used for the test of Iodine, as
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An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in the circular orbit of radius R The atom is placed in a uniform magnetic induction B such that the plane normal of electron orbit makes an angle 300 with B, as shown in figure The torque experienced by electron will be
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A cylindrical solid of length L and radius a is having varying resistivity given by r = r0 x where r0 is a positive constant and x is measured from left end of solid. The cell shown in the figure is having emf V and negligible internal resistance. The electric field as a function of x is best described by :
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A charged oil drop falls with terminal velocity V0 in the absence of electric field An electric field E keeps it stationary The drop acquires additional charge q and starts moving upwards with velocity V0 The initial charge on the drop was
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if 
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if find the value of x in given figure.
maths-General
