The Number of Carbon atoms per unit cell of diamond unit cell is :
In Castner-Kellner cell for production of sodium hydroxide:
Brine is electrolyzed with Pt electrodes
Brine is electrolyzed using graphite electrodes
Molten sodium chloride is electrolyzed
Sodium amalgam is formed at mercury cathode
What is the density of gas at and 5.00 atm pressure? (R=0.0821 atm )
Which condition is not satisfied by an ideal solution?
Obeyance to Raoult's Law
Which statement is wrong?
Feldspars are not aluminosilicates
Beryl is an example of cyclic silicate
Basic structural unit in silicates is the tetrahedron
Which of the following structure is similar to graphite?
Three thermochemical equations are given below
Based on the above equations, find out which of the relationship given below is correct?
One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio of
A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally , in 5 s. Each bullet has a mass of 10 g with a muzzle velocity of . The final velocity acquired by the person and the average force exerted on the person are
Which is the strongest acid in the following:
A particle with total energy E is moving in a potential energy region U (x). Motion of the particle is restricted to the region when
U (x) > E
U (x) =0
Identify the incorrect statement, regarding the molecule :
molecule is tetrahedral
molecule is square planar
There are four bonds
There are four bonds
What is the htbridisation state of benzyl carbonium ion
Homolytic fission of the following alkanes forms free radicals
Increasing order of stability of the radicals is
Arrange the following in increasing order of stability
E < D < C < B < A
E < D < C < A < B
D < E < C < A < B
A < E < D < C < B
Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80 - 100°C forms which one of the following products?
1,3 - Dinitrobenzene
1,4 - Dinitrobenzene
1,2,4 - Trinitrobenzene
1,2 - Dinitrobenzene
On hydrolysis of a "compound", two compounds are obtained. One of which on treatment with sodium nitrite and hydrochloric acid gives a product which does not respond to iodoform test. The second one reduces Tollen's reagent and Fehling's solution. The "compound" is
Some reactions of amines are given. Which one is not correct?
(CH3)2NH+NaNO2+HCl —> (CH3)2N-N=O
CH3CH2NH2+HNO2 —> CH3CH2OH + N2
CH3NH2+C6H5SO2Cl —> CH3NHSO2C6H5
Which one of the following molecules contains no bond?
Which of the following is electron-deficient?