Introduction to Chemical Reactions
Trending Questions
Q. Total number of electrons in SO4 2- ?
Q. total no. of electrons in 81g of Al+3 is??
Q. 35. equivalent amount of aqueous solution of weak acid and weak base have a dissociation constant of 3 10-7each. the percentage hydrolysis of salt formed by them?
Q. 2. number of electrons present in 3.4mg of NH3
Q. 36. Cyclopropane +cl2/hv light--->A +KCN----->B +2H2o /H+------>C +heat ---->D. The compound A, B, C, D are =
Q. 38. Electrophilic aromatic substitution in napthalene, which position is more electrophilic?
Q. which of the following salts will undergo hydrolysis and makes water alkaline (1) kcl (2) nacl (3) kno3 (4)nacn
Q. 72 Arrange in decreasing order of R reactivity towards aromatic Electrophilic substitution reaction:- 1) C6H5OCH3 2) C6H5OCH2H3 3) C6H5NHCOCH2CH3 4) C6H5NHCOCH3 The drawn structures of the given compounds is attached.
Q. 55 what is the main product of reaction of benzene with Na and liquid NH3
Q. 7.How many electrons in sulphur(Z=16) can have n+l=3?
Q. 46. How to convert benzene to m-chlorophenol?
Q. 20. What would be the products when dichlorobenzenes react with KNH2/NH3?
Q. 27. Total no. Of electrons present in 48g Mg2+ are:
Q. which is correct order of dipole moment?
a) ch3cl>c2h5oh>ch3coch3>c6h5cl
b)c2h5oh>ch3coch3>ch3cl>c6h5cl
c)ch3cl>c2h5oh>c6h5cl>ch3coch3
d)ch3cl>ch3coch3>c6h5cl=c2h5oh
Q. How many maximum number of electrons in a potassium atom satisfy l+m=0
Q. 2. Total number of electrons present in 48 gram Mg²+ positive are : 1. 24NA 2. 2.5 NA 3. 1.1 NA 4. 100 NA
Q. The number of electrons in 540ml of water at 4c is
Q. maximum number of electrons in a subshell with l=3 and n=4
Q. 38.Total no of electron present in Ca atom having m=0
Q. What is the hybridization of CH2=CH2
Q. for a reaction both entropy and enthalpy changes are positive. under what conditions will the reaction be spontaeous?
Q. How can benzene take electrons towards itself when an electron withdrawal group is attached to benzene
Q. 36. Ethylene reacts with S_2CI_{} to give
Q. Which of the following statements regarding the E2 mechanism is wrong?
- Reactions by the E2 mechanism usually occur in two steps.
- Reactions by the E2 mechanism are always bimolecular.
- Reactions by the E2 mechanism are generally second order.
- Reactions by the E2 mechanism usually occur in one step.
Q. 43. The equivalent weight of H3PO4 in following reaction is:- H3PO4+Ca(OH)2------>CaHPO4+2H2O 1)98 2)49 3)32.66 4)40
