List of practice Questions

Compare features of p-type and n-type semiconductors. Draw circuit diagram of half-wave rectifier of p-n junction diode and explain it. 
 

Mention the number of unpaired electrons and geometry of the following complexes:

(i) \([NiCl_4]^{2-}\)

(ii) \([Ni(CN)_4]^{2-}\)

Convert the following:

(a) Ethanenitrile into ethanal.

(b) Cyclohexane into adipic acid.

Draw the structure of Peroxymonosulfuric Acid.
Write the net cell reaction during discharging of a lead accumulator.
Derive the relation between half-life period and rate constant for a first-order reaction.
Write the chemical reaction for the preparation of Polyacrylonitrile.
Define: Nanoscience
In a circuit, the equation for alternating voltage \( V \) is represented by \( V = 40 \sin(100 \pi t) \) volt. Here \( t \) is in seconds. Draw the time-voltage (t-V) graph with proper scale for one cycle. Calculate the root mean square value of voltage.

 By drawing a ray diagram, explain the formation of image in a compound microscope. Establish the formula for magnifying power for it. 
 

What are electromagnetic waves? Draw their propagation diagram. Show the electric field amplitude and magnetic field amplitude in the propagation diagram. 
 

Write the Atomic Numbers of Transuranium Elements.
What are Enzymes?
Isobaric and Adiabatic Processes
Extensive and Intensive Properties

Anisole to Phenol. Write two uses of neon.

Acetaldehyde to Isopropyl Alcohol
Cumene to Phenol

Convert the following: 
(i) acetaldehyde to isopropyl alcohol. 
(ii) cumene to phenol. 
(iii) anisole to phenol. Write two uses of neon.

Write the preparation of potassium dichromate from chromite ore.
Define acids and bases according to Bronsted-Lowry theory. Derive the relationship between pH and pOH.
Identify ‘A’, ‘B’ and ‘C’ in the following chain reaction and rewrite the chemical reactions: \[ CH_3CH_2OH \xrightarrow{\text{red P}, \, Br_2} A \xrightarrow{\text{KCN, alc.}} B \xrightarrow{\text{LiAlH}_4, \text{Ether}} C \]
Define the electrochemical series and write its two applications.
Derive the formula for the torque acting on a current-carrying loop in a uniform magnetic field and define the magnetic dipole moment with the help of it.
What is meant by a resonant circuit? Write down the required conditions for the L-C-R series resonant circuit and expression for the frequency in the state of resonance.

Explain the difference between the following substances with the help of examples: 

(i) Paramagnetic 
(ii) Diamagnetic 
(iii) Ferromagnetic