Aldehydes and Ketone Testing Quiz PDF: Questions and Answers - 75

MCQ 371: If ketones are not oxidized, then upon heating Fehling's solution remains

1. unchanged only
2. blue only
3. white
4. unchanged and blue

MCQ 372: The enzymes in bacteria found in hot springs have an optimum temperature of

1. 95 °C
2. 70 °C
3. 25 °C
4. 55 °C

MCQ 373: The greater electron repulsion in lone pairs in water molecule results in

1. bonds being pushed further apart
2. bonds being pulled closer together
3. linear shape
4. distorting the molecular structure

MCQ 374: The mass of a substance which has been produced at an electrode is directly proportional to the quantity of electricity passed, is

1. Faraday's first law
2. Faraday's second law
3. Faraday's third law
4. Newton's third law

MCQ 375: The attraction of higher nuclear charge is less than actual charge because of

1. shielding effect
2. distance between outermost electrons (e^-) and nucleus (p⁺ and n⁰)
3. intramolecular forces
4. atomic radius