Chemistry Synergy Tests

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Chemistry Synergy Tests

Chemistry tests with answers grade good

Homologists have ... properties
close physical but different chemical
close chemical but different physical
close physical and chemical
different physical and chemical

The number of valence electrons is equal to the number of valence orbitals ...
in hydrogen
in carbon
in fluorine
in oxygen

The solution, the pH of which is pH = 10, is ...
alkaline
sour
neutral

The correct sequence of weakening the metallic properties of elements: ...
magnesium, aluminum, calcium
magnesium, calcium, aluminum
calcium, magnesium, aluminum
aluminum, magnesium, calcium

With an increase in activation energy, the rate of a chemical reaction ...
does not change
is increasing
decreases

Isomers have ... properties
different physical and chemical
close chemical and physical
close physical but different chemical
close chemical but different physical

Cyclic saturated hydrocarbons are ...
alcohols
alkanes
alkenes
cycloalkanes

A reducing agent is an element that in the course of a reaction ...
gives away electrons and recovers
attaches electrons and recovers
gives away electrons and oxidizes
attaches electrons and oxidizes

Inhibitors are ...
chain accelerating agents
substances affecting the effectiveness of catalysts
chain retardants
particles with unpaired electrons

The functional group of organic acids is ...
CH2
OH
With
COOH

The thermal effect of the endothermic reaction is ...

A donor is ...
one of the nucleons
electrically neutral particle
free-orbital particle
electron-giving particle

An oxidizing agent is an element that, during a reaction ...
attaches electrons and recovers
attaches electrons and oxidizes
gives away electrons and oxidizes
gives away electrons and recovers

The initiators are ...
particles with unpaired electrons
substances affecting the effectiveness of catalysts
chain accelerating agents
chain retardants

The general formula of alkanes is ...
CnH2n
C2nH2n
CnH2n 2
CnH2n-2

Molar concentration is ...
the ratio of the number of moles of solute to the sum of the number of moles of solvent and solute
the number of moles of solute in 1 kg of solvent
the ratio of the volume of solute to the sum of the initial volumes of solvent and solute
the number of moles of solute in 1 liter of solution

The solution, the pH of which is pH = 0, is ...
alkaline
sour
neutral

The standard enthalpy of substance formation is the thermal effect of the formation of one mole.
substances in standard conditions ...
from atoms
from nucleons
from complex substances
from simple substances

The correct sequence for enhancing the non-metallic properties of elements: ...
chlorine, bromine, selenium
bromine, chlorine, selenium
selenium, bromine, chlorine
chlorine, selenium, bromine

The speed of a chemical reaction is a change ... of any of the reacting substances during the reaction per unit
time
volume
temperature
pressure
concentration

Anion is called ...
particle with an unpaired electron
positively charged particle
negatively charged particle
neutral particle

The equation for the reaction of methane with chlorine: ...

Volume fraction is ...

The reactions occurring under the influence of light are called ...

The serial number of the element in the periodic system allows you to determine ...

Catalytic poisons are substances ... catalyst activity

The orbital quantum number determines ...

Entropy during reaction N

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