ESAS 1 objective - Part 2

61. Which of the following is the strongest type of bonds?

• A. Van de Waals

• B. Metallic

• C. Covalent

• D. lonic

62. An element maybe defines as a substance, all atoms of which have the same.

• A. number of neutrons

• B. radioactivity

• C. atomic weight

• D. atomic number

63. The device which measures the acid content of the cell is called

• A. acid meter

• B. hydrometer

• C. hygrometer

• D. pyrometer

64. A deuteron is _________

• A. A neutron plus two protons

• B. A nucleus containing a neutron and a proton

• C. An electron with a positive charge

• D. A helium nucleus

65. "At the same pressure and temperature equal volumes of all gases contain equal number of
molecules." This is known as:

• A. Boyle's law

• B. Faraday's law

• C. Avogadro's law

• D. Charles' law

66. A substance which gives up protons to another substance is called _____.

• A. acid

• B. base

• C. salt anhydride

• D. basic anhydride

67. Elements which generally exhibits multiple oxidation state are ______.

• A. Metalloids

• B. transition elements

• C. Non-metals

• D. noble gasses

68. An Angstrom unit, commonly used for atomic and sub-atomic distances is:

• A.10^-9 m

• B. 10^10 m

• C. 10^-8 m

• D. 10^-10 m

69. When two bodies, isolated from other environment, are in thermal equilibrium with the third
body. the two are in thermal equilibrium with each other. What do you call this statement?

• A. First law of thermodynamics

• B. Second law of thermodynamics

• C. Daltons law of partial pressure

• D. Zeroth law of thermodynamics

70. It is the property of absorbing moisture from atmosphere?

• A. Porosity

• B. Hygroscopicity

• C. Fluidity

• D. Insolubility