Q NO.1: Choose the right answer /22
- The Qualitative analysis is concerned with:
(a) Detection of element (b) Identification of element
(c) Amount of element (d) Both a and b
2) Which kind of filter is useful for solutions that react with paper:
(a) Fluted filter paper (b) Folded filter paper
(c) Gooch crucible (d) Sintered glass crucible
3) The solvent for crystallization should be:
(a) Safe to use (b) Expensive
(c) Easily removable (d) Both a and c
4) Which of the following solid undergo the property of sublimation?
(a) Hydrogen Iodide (b) Naphthalene
(c) Carbonic acid (d) Benzene
5) The value of Rf is always:
(a) Equal to 1 (b) Greater than 1 (c) Less than 1 (d) Zero
6) The ‘unit millibar’ is used by:
(a) Astronauts (b) Geologists
(c) Lab technologists (d) Meteorologists
7) According to Boyle’s Law:
(a) PV=k (b) V=k/P (c) P=k/V (d) All of these
8) Charlie’s Law is only obeyed when temperature is measured in:
(a) Celsius Scale (b) Fahrenheit Scale
(c) Kelvin Scale (d) Both a and c
9) The value of Zero Absolute is given as:
(a) 273 C (b) 0 C (c) -273 C (d) 273 K
10) Density of an Ideal gas is given as:
(a) d =P/RTM (b) d=PM/RT (c) d=RT/P (d) d=PMV/RT
11) Solvent extraction follows the mechanism of:
(a) Adsorption law (b) Distribution law
(c) Law of mass action (d) Conservation law