ESAS · Question Bank

Chemistry

311 questions · page 7 of 16. Answer in your head first, then check the solution.

#121
A compound that contains at least one amino group and at least one carboxyl group is called ________
Aallotrope
Bamino acid
Calkenes
Dalkynes
#122
A molecular orbit that is of higher energy and lower stability than the atomic orbitals from which it is was formed is called ________
Amain molecular orbital
Bpartial molecular orbital
Cbonding molecular orbital
Dantibonding molecular orbital
#123
A molecular orbit that is of lower energy and greater stability than the atomic orbitals from which it is was formed is called ________
Amain molecular orbital
Bpartial molecular orbital
Cbonding molecular orbital
Dantibonding molecular orbital
#124
An ion containing a central metal cation bonded to one or more molecules or ions is called ________
Acompound ion
Bcomplex ion
Csimplex ion
Dbuffer ion
#125
Compounds containing CN ion are called _________
Acyanides
Bcycloalkanes
Ccarbides
Dcarboxylic acids
#126
A molecule that does not possess a dipole moment is called _______
Apolar molecule
Bnonpolar molecule
Cnonelectrolytic molecule
Delectrolytic molecule
#127
What refers to a substance that when dissolved in water, gives a solution that is not electrically conducting?
ANonpolar
BElectrolyte
CNonelectrolyte
DPolar
#128
What refers to a chemical formula that shows how atoms are bonded to one another in a molecule?
AMolecular formula
BStructural formula
CStandard formula
DBonding formula
#129
A compound distinguished by a high molar mass, ranging into thousands and millions of grams, and made up of many repeating cells is called
Aelectrolyte
Bpolymer
Cnucleotide
Doxoacid
#130
If a more active replaces a less active one in a compound, the reaction is:
Acombustion reactions
Breplacement reactions
Cmetathesis
Dneutralization
#131
If a single reactant is transformed by heat or electricity into two or more products, the type of reaction is
Adecomposition
Bcombination
Cdisplacement
Ddouble displacement
#132
Any process extracting the metal in a fused state is called?
ACalcination
BRoasting
CSmelting
DFroth flotation
#133
Which of the ff does not change with change in temperature?
Avolume
Bmass
Cpressure
Ddensity
#134
A device used to measure density
Amanometer
Bhydrometer
Cspectrometer
Ddensimeter
#135
The element which has a mass of about 9 amu is beryllium (Be), atomic number 4. What is the charge on the Be atom?
A+4
B+8
C-4
Dneutral
#136
Refers to atoms or ions, which have the same electronic configuration
Aisoelectronic
Bisotope
Cisotomic
Disometric
#137
The ratio of the density of the test liquid to the density of a reference liquid is called:
Aspecific gravity
Brelative gravity
Cspecific weight
Drelative weight
#138
How many electrons are there in a covalent bond?
A3
B2
C4
D8
#139
The elements that a compound is composed of are present in fixed and precise proportion by mass. This is known as:
Athe law of conservation of mass
Bthe law of constant composition
Cthe law of multiple proportion
Dthe law of chemical reaction
#140
The mass to the nearest atomic-mass unit of an atom which contains 9 protons and 10 neutrons:
A10 amu
B19 amu
C15 amu
D21 amu

More ESAS topics