MCQ
When a solute is present in trace quantities the following expression is used
- AGram per million
- BMilligram percent
- CMicrogram percent
- ✓Parts per million
✓
Answer
Correct option: D.
Parts per million
d
When the solute is present in trace quantities it is convenient to express the concentration in parts per million ($ppm$)
When the solute is present in trace quantities it is convenient to express the concentration in parts per million ($ppm$)
It is defined as the quantity of the solute in grams present in $10^6 \,grams$ of the solutions.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Hofmann's hypobromite reaction affords a method of
Which of the following oxide does not form acidic aqueous solution
is major product so, $A$ is
→Match the column $-I$ with column $-II$ and mark the appropriate choice.
→| Column $- I$ | Column $-II$ | ||
| $(A)$ | $V_2O_5$ | $(i)$ | Haber's process |
| $(B)$ | $Ni$ | $(ii)$ | Prepartion of $O_2$ from $KClO_3$ |
| $(C)$ | $MnO_2$ | $(iii)$ | Conversion of $SO_2$ to $SO_3$ |
| $(D)$ | $Fe$ | $(iv)$ | Hydrogenation of oils |
Which reagents can be used to distinguish glucose and fructose ?
→$(I)$ Bromine water
$(II)$ Tollen's reagents
$(III)$ Shiff's reagent
Which one of the following is the true covalent oxide of iodine
The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)
$\underset{{{C}_{7}}{{H}_{14}}}{\mathop{(A)}}\,\xrightarrow[Zn/AcOH]{{{O}_{3}}}(B)+(C)$
→Compound $(A)$ exist in geometrical isomers and $(B)$ gives Cannizaro reaction. $(A)$ will be
Ethyl orthoformate is formed by heating with sodium ethoxide
The solution of sugar in water contains