IIT-JEE 1987

The IUPAC name of the compound
CH2 = CH \(-\) CH(CH3)2

sp2 hybrid orbitals have equal s and p character.

In benzene, carbon uses all the three p-orbitals for hybridisation.

Hydrogen bond is maximum in

The brown ring complex compound is formulated as [Fe(H2O)5(NO)+]SO4. The oxidation state of iron is

(i) What is the weight of sodium bromate and molarity pf solution necessary to prepare 85.5 ml of 0.672 B solution when the half-cell reaction is
\(BrO_3^- + 6H^+ + 6e^- \to\) \(Br^- + 3H_2O\)
(ii) What would be the weight as well as mola...

The value of PV for 5.6 litres of an ideal gas is ________ RT, at NTP.

A spherical balloon of 21 cm diameter is to be filled up with hydrogen at N.T.P from a cylinder containing the gas at 20 atmospheres at 27oC. If the cylinder can hold 2.82 litres of water, calculate the number of balloons that can be filled...

Give reasons of the following:
Why is sodium chloride added during electrolysis of fused anhydrous magnesium chloride?

The electronegativity of the following elements increases in the order

In group IA, of alkali metals, the ionisation potential decreases on moving down the group. Therefore, lithium is a strongest reducing agent

Atomic radii of fluorine and neon in Angstrom units are respectively given by

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

Give reasons of the following :
Magnesium oxide is used for the lining of steel making furnace.

The metallic lustre exhibited by sodium is explained by

Sodium when burnt in excess of oxygen gives sodium oxide.