Per NCERT's Activity 5.1, a beaker of CHALK POWDER stirred into water is which type of mixture?
ASaturated solution
BPure substance — chalk and water react
CHeterogeneous — chalk particles are visible and settle over time
DHomogeneous — chalk dissolves completely
Answer & Solution
Correct answer: C. Heterogeneous — chalk particles are visible and settle over time
Chalk powder is insoluble — particles settle, making the mixture heterogeneous (per NCERT Activity 5.1). The other options misclassify.
Related questions
Per NCERT's classification, MILK passed by laser light shows visible scattering of the beaPer NCERT, FOG (tiny water droplets in air) is which type of mixture?Per NCERT, SMOKE (solid particles suspended in air) is which type of mixture?Per NCERT, a mixture of TWO GASES (e.g. hydrogen + oxygen used as rocket fuel) is which tyPer NCERT, why is AERATED SODA (carbon dioxide dissolved in water) a homogeneous mixture?Per NCERT, what is the SOLVENT in a solution of common salt in water?Per NCERT, what is the SOLUTE in a solution of sugar in water?Per NCERT, a mixture of OIL and WATER is which type?