The number of molecules in 8.96 L of a gas at 0Â°C and 1 atmosphere pressure is approximately
The number of oxygen atoms 4.4g of CO2 is
0.75g plantic chloride, a monoacid base on ignition gave 0.245g plantinum. The molecular weight of the base is
2.76 g of silver carbonate on being strongly heated yields a residue weighing
How many significant digits are there in 0.5?
The correct order for homolytic bond dissociation energies (AH in kcal/mol) for CH4 (A), C2 H6 (B) and CH3 Br (C), under identical..
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..
Chlorobenzene is o, p -directing in electrophilic substitution reaction. The directing influence is explained by
An element, x has the following isotopic composition l.
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
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..
The same amount of zinc is treated separately with excess of sulphuric acid and excess of solution hydroxide. What will be the rat..
Boron has two stable isotopes, 10 B (19%) and 11 B(18%). Average atomic weight for boron in the periodic table is
If Na is avogadros number then number of valence electrons in 4.2 g of nitride icons N^3_ is
An element, X has the following isotopic composition:
200X:90%, 190X:8.0%, 202X:2.0%
Haemoglobin contains 0.334 % of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron ato..
Which kind of fission is favoured by sunlight?
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,
Which has maximum number of atoms?
Density of a 2.05 M solution of acetic acid water is 1.02
a gaseous hydrocarbon gives upon combustion, 0.72 g
One gram of hydrogen is found to combine with 80 g of bromine the equivalent weight of calcium is
Optical isomerism is shown by
Geometrical isomerism is possible in
The IUPAC name of the following compound is
Which is the most stable carbocation?
Geometry of methyl free radical is
Least stable conformer of cyclohexane is
In the hydrocarbon
Identify, which of the below does not possess any element of symmetry ?
The maximum number of molecules is present in
The reaction intermediate produced by homolytic cleavage of a bond is called
The drug which is used for treating AIDS victims is
The IUPAC name of
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