Question

answer
1. In atomic absorption the sample is
and excited by heat energy ge
(a) vaporised, flame
(b) afomised, burner
(c) quantised, lamp
(d) ionized, furnace
2. Atomic absorption is primarily used for the determination of ....in a sample,
(a) trace metals
(b) non-metals
(c) major constituents
(d) minor constituents
3. In AAS, radiation is absorbed by atoms in the vapour state.
(a) excited
(b) non-excited (c) vaporised
(d) ionized
4. Resonance detectors permit the isolation of those lines which show
intensity without any monochromator
(a) lowest
(b) medium
(c) poor
(d) highest
5. The AA is
sensitive than flame photometry,
(a) more
(b) less
(c) medium
(d) high
6. In AAS, high concentrations of gaseous atoms cause ....of absorption lines.
(a) narrowing
(b) broadening
(c) resonance (d) sputtering
7. In AAS ......is obeyed over a wide range of concentrations
(c) Beer's law
(a) Lambert's law (b) Nernst law
(d) Bouguer's
8. For alkali metals, laboratory type ...lamps can be used as a source instead of h
cathode lamps.
(b) tungsten
(d) incandescent lame
(a) discharge​

Answer 1

Answer:

No cheating plz and follow me