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Aim

Theory

Self Evaluation

Procedure

Simulation

Assignment

References

Feedback

Estimation of Phosphate Content in Soft Drinks

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Which of the following is a tribasic acid?

a: Acetic acid Explanation

Explanation

b: Phosphoric acid Explanation

Explanation

c: Sulphuric acid Explanation

Explanation

d: Benzoic acid Explanation

Explanation

A colorimeter measures

a: Light that passes through the substance Explanation

Explanation

b: Light given off by the substance Explanation

Explanation

c: Change in wave length of light by the substance Explanation

Explanation

d: Light that is fluoresced by the substance Explanation

Explanation

In the equation, A = εlc, what quantity is represented by ε?

a: Absorbitivity Explanation

Explanation

b: Path length Explanation

Explanation

c: Molar absorbitivity Explanation

Explanation

d: Wave length Explanation

Explanation

Theoretically, a reducing agent can be described as a substance that

a: Loses electrons and becomes reduced. Explanation

Explanation

b: Loses electrons and causes reduction. Explanation

Explanation

c: Gains electrons and causes oxidation. Explanation

Explanation

d: Gains electrons and becomes reduced. Explanation

Explanation

The visible portion of the electromagnetic spectrum occurs between ……nm and ……nm

a: 800, 1200 Explanation

Explanation

b: 10, 300 Explanation

Explanation

c: 400, 740 Explanation

Explanation

d: 1, 10 Explanation

Explanation

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