Download App

Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
Question
Why does distilled water not conduct electricity whereas rain water does?
✓

Answer

Distilled water does not conduct electricity because it does not contain any ionic compounds dissolved in it whereas rain water does.
Reason: When rain water falls on earth through the atmosphere, it dissolves an acidic gas 'carbon dioxide' from the air and forms carbonic acid $\left( H _2 CO \right)$. The carbonic acid provides some hydrogen and carbonate ions to the rain water. Due to the presence of these ions, |rain water conducts electricity.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[1 Mark Questions]" from Acids, Bases and Salts→Acids, Bases and Salts — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

An element ‘B’ belongs to the second period and Group 13. Give the formula of its oxide.
→
1. The atomic number of sodium is 11 . What is the number of electrons in $Na ^{+}$?
2. The atomic number of chlorine is 17 . What is the number of electrons in $Cl ^{-}$?
→
What is the name of the system of glands which produces hormones?
→
Write the name and formula of the $2^{\text {nd }}$ member of homologous series having general formula $C _{ n } H _{2 n }$.
→
Which plant tissue is involved in translocation:
xylem or phloem?
→
Name some devices in which electric motors are used.
→
Name the functional groups present in the following compound.
$CH_3COCH_2CH_2CH_2CH_3$
→
Name the type of chemical substances that control the growth in plants.
→
What type of reflector is used in a box-type solar cooker?
→
Give the name and structural formula of one member of the following:
Alcohols.
→