List of practice Questions

The constant $'a'$ in van der Wall's equation is maximum in :
Pure propanone can be prepared by ozonolysis of:
Principle/which gives a way to fill the electrons in the available energy levels is:
Which compound is obtained when formaldehyde is treated with ammonia?
An example of anthraquinone dye is
Nylon-66 is made by using
A resonance air column of length $20\, cm$ resonates with a tuning fork of frequency $450\, Hz$. Ignoring the correction, the velocity of sound in air will be
The ammeter A reads 2 A and the voltmeter V reads 20 V. The value of resistance R is:
Which of the following is pollution related disorder?
Which of the following order for ionization energy is correct ?
Which of the following organelles has single membrane?
Which of the following species is isoelectronic with CO?
Which of the following element has the maximum electron affinity ?
In operon concept, regulator gene functions as
In forward bias, the width of potential barrier in a p-n junction diode
In a p type semiconductor, the majority carriers of current are
In a junction diode the holes due to:
In 1984, Bhopal gas tragedy was caused due to leakage of
D.D.T.is
When a thin metal plate is placed in the path of one of the interfering beams of light
The number of ?
Oxidation number of ???
Gammexane is :
??omma?
A positive carbylamine test is given by