Chemistry
Assertion (A): Chromatography is the latest technique to separate the components of a mixture when all the components are different in their properties.
Reason (R): Components of ink are separated by chromatography.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Elements, Compounds & Mixtures
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Answer
A is false but R is true.
Explanation — Assertion (A) is incorrect—chromatography isn't the "latest" technique, and separation depends on differential adsorption/partition, not on all components being different in all properties.
Reason (R) is correct—ink components can indeed be separated by chromatography (e.g., paper chromatography).
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Related Questions
Assertion (A): All compounds contain more than one type of element in their molecules.
Reason (R) : Compounds can be homogeneous or heterogeneous.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Metalloids are the elements showing some properties of metals and some properties of non-metals.
Reason (R): Metalloids are hard solids.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Fill in the blanks:
(a) Brass is a solid-solid …………… mixture.
(b) The method used to separate sawdust and sand is …………… .
(c) Kerosene oil and water are …………… liquids.
(d) Atomicity is the number of atoms in a molecule of …………… .
Write true or false against the following statements .
(a) The elements present in a compound can be obtained by simple physical methods.
(b) The properties of components are retained in a mixture.
(c) Common salt is separated from sea water by evaporation.
(d) A mixture has a definite chemical formula.