Chlorobenzene is o, p -directing in electrophilic substitution reaction. The directing influence is explained by
The molecular weight of O2 and SO2 and 32 and 64 respectively. At 15 degree C and 150 mm Hg pressure, one litre of O2 contains N m..
The correct order for homolytic bond dissociation energies (AH in kcal/mol) for CH4 (A), C2 H6 (B) and CH3 Br (C), under identical..
74.5g of a metallic chloride contain 35.5 g of chlorine The equivalent weight of the metal is
The weight of a molecule of the compound C60 H1
Number of moles of MnO4 required to oxidize one mole of ferrous oxalate completely in acidic medium will be :
What volume of NH3 gas at STP would be needed to prepare 100 ml of 2.5 molal (2.5m) ammonium hydroxide solution
The same amount of zinc is treated separately with excess of sulphuric acid and excess of solution hydroxide. What will be the rat..
In an experiment it showed that 10 ml of 0.05 M solution of chloride required 10 ml of 0.1 M solution of AgNO3, which of the follo..
Boron has two stable isotopes, 10 B (19%) and 11 B(18%). Average atomic weight for boron in the periodic table is
Haemoglobin contains 0.334 % of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron ato..
An element, X has the following isotopic composition:
200X:90%, 190X:8.0%, 202X:2.0%
Which kind of fission is favoured by sunlight?
Which has maximum number of atoms?
The maximum number of possible optical isomers in 1-bromo-2-methyl cyclobutane is
1 L oxygen gas at STP will weigh
The state of hybridization of C2, C3, C5 and C6 of the hydrocarbon,
If Na is avogadros number then number of valence electrons in 4.2 g of nitride icons N^3_ is
Density of a 2.05 M solution of acetic acid water is 1.02
One gram of hydrogen is found to combine with 80 g of bromine the equivalent weight of calcium is
Geometrical isomerism is possible in
The IUPAC name of the following compound is
a gaseous hydrocarbon gives upon combustion, 0.72 g
Which is the most stable carbocation?
Optical isomerism is shown by
Geometry of methyl free radical is
Least stable conformer of cyclohexane is
Identify, which of the below does not possess any element of symmetry ?
The reaction intermediate produced by homolytic cleavage of a bond is called
The maximum number of molecules is present in
In the hydrocarbon
The drug which is used for treating AIDS victims is
The IUPAC name of
The correct order regarding the electronegativity of hybrid orbitals of carbon is
+I-effect is shown by
When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is
The number of stereoisomers obtained by bromination of trans-2-butene is
Which one of the following shows functional isomerism ?
The under of moles of KMnO4 reduced by one of KI in alkaline medium is
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