$81.4 \ g$ sample of ethyl alcohol contains $0.002 \ g$ of water. The amount of pure ethyl alcohol in $g$ to the proper number of significant figures is:
- A$81.4$
- B$71.40$
- C$81.398$
- D$81$
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The incorrect rule regarding the determination of significant figures is
Find the number of electrons that generate $1$ coulomb charge?
DifficultMHT CET 2024
View SolutionMatch the units in Column-$A$ with their equivalent values in Column-$B$ and select the correct option:
Column-$A$
Column-$B$
$1$. Femtometer
$(P)$. $10^{-3} \ \mu m$
$2$. Picometer
$(Q)$. $10^{-3} \ mm$
$3$. Nanometer
$(R)$. $10^{-3} \ pm$
$4$. Micrometer
$(S)$. $10^{-3} \ cm$
$(W)$. $10^{-3} \ nm$
| Column-$A$ | Column-$B$ |
| $1$. Femtometer | $(P)$. $10^{-3} \ \mu m$ |
| $2$. Picometer | $(Q)$. $10^{-3} \ mm$ |
| $3$. Nanometer | $(R)$. $10^{-3} \ pm$ |
| $4$. Micrometer | $(S)$. $10^{-3} \ cm$ |
| $(W)$. $10^{-3} \ nm$ |
Easy
View Solution$1\,^{\circ}C$ rise in temperature is equal to a rise of
Medium
View SolutionConvert the following into basic units:
$(i)$ $28.7\, pm$
$(ii)$ $15.15\, pm$
$(iii)$ $25365\, mg$
$(i)$ $28.7\, pm$
$(ii)$ $15.15\, pm$
$(iii)$ $25365\, mg$
Difficult
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