Triesters of long-chain acids with glycerol are called
a. condensation polymers.
b. fats.
c. soaps.
d. synthetic detergents.
[Ques. 2] Which of the following four objects has the greatest kinetic energy?
a. An object of mass m moving with speed 4v
b. An object of mass 3m moving with speed 2v
c. An object of mass 4m moving with speed v
d. An object of mass 2m moving with speed 3v
e. None of these; all four objects have the same kinetic energy.
[Ques. 3] Another name for glucose is
a. dextrose.
b. malt sugar.
c. sucrose.
d. lactose.
[Ques. 4] The potential energy of a pendulum is greatest
a. when its potential energy is least.
b. at the top of its swing.
c. at the bottom of its swing.
d. when its total energy is greatest.
[Ques. 5] An advantage of synthetic detergents over soaps is that they
a. do not contain sulfur.
b. dissolve grease.
c. do not form scum in hard water.
d. are more readily biodegradable.
[Ques. 6] The kinetic energy of a pendulum is least
a. when its potential energy is least.
b. at the top of its swing.
c. at the bottom of its swing.
d. when its total energy is greatest.
[Ques. 7] What are the basic building blocks of proteins?
a. Amino acids
b. Starches
c. Sugars
d. Carboxylic acids
[Ques. 8] The potential energy of a pendulum is least
a. when its potential energy is greatest.
b. at the top of its swing.
c. at the bottom of its swing.
d. when its total energy is greatest.
[Ques. 9] Starch is a polymer that consists of long chains of ______________ units.
a. lactose
b. fructose
c. maltose
d. glucose
[Ques. 10] The kinetic energy of a pendulum is greatest
a. when its potential energy is greatest.
b. at the top of its swing.
c. at the bottom of its swing.
d. when its total energy is greatest.
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