When ethyl hydrogen sulphate is heated with excess of alcohol at 410K, the product obtained is
Which alkene is formed from the following ylide carbonyl pair?
CH₃CH₂CH₂CH═PPh₃ + 2-butanone
Which of the following monosaccharides is a pentose?
AgCl is soluble in
On hydrolysis of chloroform with aqueous potassium hydroxide, the final product obtained is
The number of unpaired electrons in Ni⁺⁺ is
Mixture of sand and sulphur may best be separated by
Reaction of benzene with alkyl halide in the presence of anhydrous AlCl3 is called
The greater the s- character in an orbital the ... is its energy
The greater the s- character in an orbital, the shorter is the bond and greater is its strength. Thus, bond formed by sp hybridisation , as in acetylene is stronger as compare to ethane and ethene , because it has maximum bond energy.
A carboxylic acid is converted into its anhydride using
Inter molecular forces in solid hydrogen are
When Zn dust is added to sufficienly large volume of aqueous solution of copper sulphate 3.175 g of copper metal and 20 J of heat is evolved. ∆H of reaction permol of Cu is
Which of these does not influence the rate of reaction?
For reaction at equilibrium, Le Chatelier's principle predicts the effects of
Identify the reaction for which ΔH ≠ ΔE
2, 4, 6-Trinitrophenol is a/an
What is the order of stability for
I.1-butene; II.cis-2-butene; III.trans-2-butene
Let electronegativity, ionisation energy and electron affinity be represented as EN, IP and EA respectively. Which one of the following equation is correct according to Mulliken?
Electronegativity (EN) can be regarded as the average of the ionisation energy (IE) and the electron affinity (EA) of an atom.
EN = IP + EA/2
Pressure of a gas is due to
Standard reduction potentials of Sn2+ | Sn and Zn2+ | Zn electrodes are -0.14 V and -0.74 V respectively. What is the Eº of the following cell in volts?
Zn | Zn2+ || Sn2+ | Sn
Which of the following will have fastest rate of reaction with Br₂/FeBr₃?
To suppress the dissociation of acetric acid , the compound to be added to it is
Which among the following will not show chain isomerism?
Target nucleus A is converted to product nucleus B by (p, n) reaction : A (p, n) B.
When benzenediazonium chloride is treated with water, the compound formed is
Which of the following is a strongest base?
Arrange these compounds in order of increasing SN2 reaction rate :
Which of the following is a bio-degradable polymer?
For the separation of two immiscible liquids which method is used ?
A compound contains atoms of three elements : A,B and C. If the oxidation number of A is + 2, B is + 5 and that of C is -2, the possible formula of the compound is
The major binding force of diamond, silicon and quartz is
Volume of 0.1 M K₂Cr₂O₇ required to oxidise 35 ml of 0.5 M FeSO₄ solution is
The rates of diffusion of gases A and B of molecular weight 36 and 64 are in the ratio
The formula of metal chloride is MCl3. It contains 20% of metal. The atomic weight of metal is approximately
Which of the following type of molecules from micelles?