19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The decreasing order of dipole moments of the molecules HF, H2O, BeF2, NF3 is
Which of the following molecule has dipole moment zero?
The net dipole moment of H2O molecule is
The dipole moment of HF molecule may be represented as (a) (b) (c) (d) Ans. (b) Sol. This arrow symbolizes the direction of the shift of electron density in the molecule.
Dipole moment is usually expressed in Debye units
Dipole moment is usually designated by a Greek letter ‘μ ‘ µ = Q × r Here Q and r represents
Which acid is strongest or Which is most acidic
Which of the following is the weakest acid (a)
The acidic nature of carboxylic acids, is due to
Which of the following would be expected to be the most highly ionized in water ?
Rewrite the following in the increasing order of acidity ? (i) Benzoic acid (ii) p-methoxybenzoic acid (iii) o-methoxybenzoic acid
The increasing order of acidity of , and – chlorobutyric acids is
Which one of the following orders of acid strength is correct
Acetic acid is weak acid than sulphuric acid because
Which of the following para-substituted benzoic acids is the most acidic
In the anion HCOO– the two carbon-oxygen bonds are found to be of equal length. What is the reason for it.
What is the main reason for the fact that carboxylic acids can undergo ionization
Increasing value of the dissociation constant Ka of the given acids is of the order Carboxylic Acid and Its Derivatives
The reaction: RCOOAg + Br2 4 ,Reflux CCl -> R – Br + AgBr + CO2 is called
The principal organic product formed in the reaction ( ) Peroxide CH CH CH COOH HBr -> is:
Among the following, the acid which undergoes fastest decarboxylation is (a) (b)
Treatment of benzoic acid with Cl2/FeCl3 will give
Which of the following will not undergo Hell - volhard Zelinsky (HVZ) reaction ?
The elimination of CO2 from a carboxylic acid is known as
Which has maximum value of equilibrium constant ? (a) CH COOH H O CH COO H O -> (b) HCOOH H O HCOO H O -> (c) C H COOH H O C H COO H O -> (d) CF COOH H O CF COO H O ->