Match the following:
A. Molal depression constant | (i) Infinite dilution |
B. Acetaldehyde | (ii) mol l -1 sec-1 |
C. Rate of reaction | (iii) Iodoform |
D. Rate of reaction | (iv) K Kg mol-1 |
E. Kohlrausch’s law | (v) Lactic acid |
Fill in the blanks by choosing the appropriate word/words from those given in the
brackets:
(increases, formic acid, decreases, less, zero, small, paired, atoms, unpaired, ions, pentagonal bipyramidal, electrical, more,
(i) An electrochemical cell converts ________ energy to _________ energy.
(ii) The crystal of graphite is made up of ______________ while that of sodium chloride is made up of __________________.
(iii) Ethyl isocyanide, on hydrolysis with dilute sulphuric acid, gives ______________ and _________________ .
(iv) The molar conductance of a solution _______________ with dilution, while its specific conductance _______________ with dilution.
(v) The Van’t Hoff factor of acetic acid solution is ____________than one and the value of normal colligative property is ____________ than the observed colligative property of this solution.
Complete the following statements by selecting the correct alternative from the choices given:-
Of the following terms used for denoting concentration of a solution, the one which does not get affected by temperature is:
Molarity
Molality
Normality
Formality
Complete the following statements by selecting the correct alternative from the choices given:-
The solubility of calcium hydroxide is s mol litre-1. The solubility product under the same condition will be:
4s3
2s3
2s2
2s2
Complete the following statements by selecting the correct alternative from the choices given:-
A current liberates 0.50g of hydrogen in 2 hours. The weight of copper (at.wt.= 63.5) deposited at the same time by the same current through Copper sulphate solution is:
63.5 g
31.8 g
15.9 g
15.9 g
Complete the following statements by selecting the correct alternative from the choices given:-
Natural rubber is a:
Polyester
Polyamide
Polyisoprene
Polyisoprene
C.
Polyisoprene
Complete the following statements by selecting the correct alternative from the choices given:
Among the following halogens, the one which does not form an oxyacid is:
Fluorine
Chlorine
Bromine
Bromine
Answer the following questions:
What is the [OH-] concentration of an acid whose pH is 5 at 25oC?
Answer the following questions:
What happens when a nickel rod is dipped into a copper sulphate solution? Justify your answer.
Answer the following:
Write the equation for the preparation of acidanilide from aniline.