Question 1

Which of the following sub discipline in chemistry deals with the study of all substances containing carbon?

Accepted Answer

Organic chemistry

Answer

Inorganic chemistry

Answer

Biochemistry

Answer

Analytical chemistry

Question 2

Which of the following branch of chemistry deals with the analysis, identification, separation and composition of matter?

Accepted Answer

Analytical chemistry

Answer

Biochemistry

Answer

Inorganic chemistry

Question 3

Which of the following is an example of chemical change?

Accepted Answer

Burning of magnesium ribbon

Answer

Melting ice cream

Answer

Condensing water vapor

Answer

All of the above

Question 4

It is the force of attraction between atoms and molecules

Accepted Answer

chemical bonds

Answer

covalent bond

Answer

none of the above

Answer

chemical reactions

Question 5

Which of the following properties is considered in a qualitative analysis?

Accepted Answer

all of the above

Answer

odor

Answer

reactivity

Answer

color

Question 6

It is always necessary to dry the interior surface of a laboratory glassware before use

Accepted Answer

TRUE

Answer

FALSE

Question 7

It refers to a component or chemical species that is of interest in an analytical procedure.

Accepted Answer

analyte

Answer

solute

Answer

product

Answer

reactant

Question 8

It is a method in a quantitative analysis that involves measurement of the mass of a substance chemically related to analyte.

Accepted Answer

Gravimetric

Answer

Volumetric

Answer

Electroanalytical

Answer

Spectroscopic

Question 9

An analyte with a percentage from 0.1 t0 1% from the sample can be considered as_____.

Accepted Answer

minor constituent

Answer

trace constituent

Answer

major constituent

Answer

ultratrace constituent

Question 10

Which of the following is not considered as a concentrated acid?

Accepted Answer

KOH

Answer

HBr

Answer

H2SO4

Answer

HCl

Question 11

Sodium chloride(NaCl) is an example of ______________.

Accepted Answer

compound

Answer

element

Answer

solution

Answer

heterogeneous mixture

Question 12

Steel is an example of _____________.

Accepted Answer

solution

Answer

heterogeneous mixture

Answer

element

Answer

compound

Question 13

The distinguishing characteristics that we use to identify different samples of matter are called   _________.

Accepted Answer

Properties

Answer

Structures

Answer

Compositions

Answer

Changes

Question 14

Which of the following properties is considered in a quantitative analysis?

Accepted Answer

all of the above

Answer

mass

Answer

concentration

Answer

volume

Question 15

The following are chemical methods of quantitative analysis, except.

Accepted Answer

spectroscopy

Answer

none of the above

Answer

precipitation

Answer

titration

Question 16

What type of process is applied when solid changes directly into gas?

Accepted Answer

Sublimation

Answer

Evaporation

Answer

Condensation

Answer

Freezing

Question 17

In using an analytical balance always allow an object that has been heated to return to room temperature before weighing.

Accepted Answer

TRUE

Answer

FALSE

Question 18

It is a method in a quantitative analysis that involves measurement of electromagnetic radiation that either produced or resulted from its interaction with the analyte.

Accepted Answer

Spectroscopic

Answer

Volumetric

Answer

Electroanalytical

Answer

Gravimetric

Question 19

An analyte with a percentage from 0.001 t0 0.1% from the sample can be considered as___________.

Accepted Answer

trace constituent

Answer

minor constituent

Answer

ultratrace constituent

Answer

major constituent

Question 20

Chemicals with purity greater than 99.5 is considered as________________.

Accepted Answer

Primary Standard

Answer

Commercial Reagents

Answer

United States Pharmacopoeia(USP)

Answer

Chemically Pure Reagents(CP)

Question 21

Which of the following is not an SI unit?

Accepted Answer

Rankine

Answer

meter

Answer

Kelvin

Answer

kilogram

Question 22

Convert 1.25 km to cm.

Accepted Answer

125, 000 cm

Answer

125 cm

Answer

12, 500 cm

Answer

1,250 cm

Question 23

His theory of atoms became the basis for the three laws of matter that govern chemical reaction.

Accepted Answer

Dalton

Answer

Thompson

Answer

Rutherford

Answer

Democritus

Question 24

What law of matter states that the mass of one element that can combine with a fixed mass of another element are in a ratio of small whole numbers?

Accepted Answer

Law of Definite Proportion

Answer

Law of Conservation of Mass

Answer

Law of Multiple Proportions

Answer

Ideal Gas Law

Question 25

What type of chemical reaction?

Accepted Answer

Composition

Answer

Decomposition

Answer

Double displacement

Answer

Single Displacement

Question 26

What type of chemical reaction?

Accepted Answer

Double displacement

Answer

Decomposition

Answer

Single displacement

Answer

Composition

Question 27

What type of chemical reaction?

Accepted Answer

Decomposition

Answer

Single displacement

Answer

Composition

Answer

Double displacement

Question 28

What type of chemical reaction?

Accepted Answer

Single Displacement

Answer

Double displacement

Answer

Composition

Answer

Decomposition

Question 29

How to name the following binary compound formula?

Accepted Answer

diphosphorous pentoxide

Answer

diphosphorous oxide

Answer

phosphorous pentoxide

Answer

phosphorous oxide

Question 30

Convert 45mg to kg

Accepted Answer

4.5 x 10^-5kg

Answer

6.5 x 10^-4kg

Answer

3.5 x 10^-3 kg

Answer

5.5 x 10^-2kg

Question 31

Convert 45⁰C to ⁰F

Accepted Answer

1130F

Answer

1120F

Answer

1140F

Answer

1150F

Question 32

Convert 82⁰C to K

Accepted Answer

355.15K

Answer

350K

Answer

358.15K

Answer

340K

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