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.
chemical, electrical
,atoms, ions
,formic acid, ethylamine
,increases, decreases
,less, more
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
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.