Assertion (A):Glucose is a pure substance,while it contains carbon, hydrogen and oxygen Reason(R):C,H and O are present in fixed ratio.They can be separated by simple physical method. (1)a. (2)b. (3) c. (4) d.?

Question

Answer

Assertion: Glucose is a pure substance.
Reason: Glucose contains carbon, hydrogen, and oxygen in a fixed ratio. They can be separated by simple physical methods.

Explanation:

In order to evaluate the given assertion and reason, we need to understand the concepts of pure substances, glucose, and the fixed ratio of carbon, hydrogen, and oxygen.

1. Pure Substances:

A pure substance is a type of matter that has a fixed composition and distinct properties. It consists of only one type of atom or molecule. Pure substances can be further classified into elements and compounds.

2. Glucose:

Glucose is a type of sugar and a fundamental source of energy in living organisms. It is a carbohydrate and is represented by the chemical formula C6H12O6. Glucose is a compound because it is composed of different types of atoms (carbon, hydrogen, and oxygen) bonded together in a fixed ratio.

3. Fixed Ratio of Carbon, Hydrogen, and Oxygen:

The chemical formula of glucose, C6H12O6, indicates that it contains six carbon atoms, twelve hydrogen atoms, and six oxygen atoms. The ratio of carbon to hydrogen to oxygen in glucose is always 1:2:1, regardless of the source or method of preparation.

Assertion Evaluation:

The given assertion states that glucose is a pure substance. This is correct because glucose is a compound with a fixed composition and distinct properties. It is composed of carbon, hydrogen, and oxygen atoms in a fixed ratio.

Reason Evaluation:

The given reason states that carbon, hydrogen, and oxygen can be separated by simple physical methods. This is incorrect because the fixed ratio of these elements in glucose cannot be altered by simple physical methods. Separation of glucose into its constituent elements requires chemical reactions, such as decomposition or combustion.

Conclusion:

In conclusion, the given assertion is correct as glucose is indeed a pure substance. However, the given reason is incorrect as the fixed ratio of carbon, hydrogen, and oxygen in glucose cannot be separated by simple physical methods.

Answer:

(1) a.

Answer

Answer kon sa hogA

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