The correct order for homolytic bond dissociation energies (AH in kcal/mol) for CH4 (A), C2 H6 (B) and CH3 Br (C), under identical..
What volume of NH3 gas at STP would be needed to prepare 100 ml of 2.5 molal (2.5m) ammonium hydroxide solution
2.76 g of silver carbonate on being strongly heated yields a residue weighing
An element, x has the following isotopic composition l.
How many significant digits are there in 0.5?
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..
If Na is avogadros number then number of valence electrons in 4.2 g of nitride icons N^3_ is
Number of moles of MnO4 required to oxidize one mole of ferrous oxalate completely in acidic medium will be :
Which has maximum number of atoms?
The weight of a molecule of the compound C60 H1
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..
arrange the carbanions, (CH3)3 C, CCI3,
Boron has two stable isotopes, 10 B (19%) and 11 B(18%). Average atomic weight for boron in the periodic table is
The same amount of zinc is treated separately with excess of sulphuric acid and excess of solution hydroxide. What will be the rat..
1 L oxygen gas at STP will weigh
Density of a 2.05 M solution of acetic acid water is 1.02
a gaseous hydrocarbon gives upon combustion, 0.72 g
The number of stereoisomers obtained by bromination of trans-2-butene is
Which kind of fission is favoured by sunlight?
An element, X has the following isotopic composition:
200X:90%, 190X:8.0%, 202X:2.0%
The state of hybridization of C2, C3, C5 and C6 of the hydrocarbon,
The maximum number of possible optical isomers in 1-bromo-2-methyl cyclobutane is
Identify, which of the below does not possess any element of symmetry ?
Geometrical isomerism is possible in
Least stable conformer of cyclohexane is
Optical isomerism is shown by
The maximum number of molecules is present in
Haemoglobin contains 0.334 % of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron ato..
The correct order regarding the electronegativity of hybrid orbitals of carbon is
The reaction intermediate produced by homolytic cleavage of a bond is called
Geometry of methyl free radical is
Which is the most stable carbocation?
In the hydrocarbon
The IUPAC name of the following compound is
Number of atoms in 558.5g Fe (At. wt. 55.85) is
The IUPAC name of
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