ICSE X/ICSE X Chemistry [ MCQ Question Answer ] Sample Test,Sample questions

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Question:
Alkaline earth metals include :

1.Group 1 element

2.Group 2 element

3.Group 18 element

4.Group 17 element

Posted Date:-2022-01-12 01:02:21


Question:
Arrange the following as per instruction given in the brackets K, CI, Na, S, Si (increasing order of
atomic size)

1. K<Na < Si < S < CI

2.K< Na < Si < CI <S

3.Na < S< Cl < K < Si

4.Si<S<CI<Na

Posted Date:-2022-01-12 00:25:17


Question:
Brine is an:

1.aqueous solution of sodium hydroxide

2.aqueous solution of sodium carbonate

3.aqueous solution of sodium chloride

4.aqueous solution of sodium bicarbonate

Posted Date:-2022-01-12 01:15:09


Question:
Covalent bond is formed between :

1.Metal and non-metal

2.Metals

3.Two non-metals

4.Non-metal and an ion

Posted Date:-2022-01-12 01:16:46


Question:
During ionisation metals lose electrons, this change can be called

1.Oxidation

2.Reduction

3.Redox

4.Displacement

Posted Date:-2022-01-12 01:00:26


Question:
How many valence electrons are present in C?

1.2

2.3

3.4

4.5

Posted Date:-2022-01-12 01:24:50


Question:
Hydroxide of this metal is soluble in sodium hydroxide solution :

1.Magnesium

2.Lead

3.Silver

4.Copper

Posted Date:-2022-01-12 00:58:44


Question:
Identify the element belonging to third period and 17th group of the periodic table.

1.Chlorine

2.Bromine

3.Sulphur

4.Silicon

Posted Date:-2022-01-12 01:13:13


Question:
Identify the weak electrolyte from the following

1.Sodium chloride solution

2.Dilute hydrochloric acid

3.Dilute sulphuric acid

4.Aqueous acetic acid

Posted Date:-2022-01-12 00:23:37


Question:
If two compounds have the same empirical formula but different molecular formulae, they must have :

1. different percentage composition.

2.different molecular mass.

3.same viscosity.

4.same vapour density.

Posted Date:-2022-01-12 01:44:30


Question:
In terms of acidic strength, which one of the following is in the correct increasing order?

1.Water< Acetic acid < Hydrochloric acid

2.Water<Hydrochloric acid < Acetic acid

3.Acetic acid < Water < Hydrochloric acid

4.Hydrochloric acid < Water <Acetic acid

Posted Date:-2022-01-12 01:42:40


Question:
In terms of acidic strength, which one t thee tiblwmg 1S in the orTect increasing order?

1.Water <Hydrochloric acid < Acetic acid

2.Water< Acetic acid < Hydrochloric acid

3.Acetic acid < water < Hydrochloric acid

4.Water< Acetic acid < Hydrochloric acid

Posted Date:-2022-01-12 00:52:53


Question:
Ionic bond is present in which of the following species:

1.O2

2.CHCl

3.NaBr

4.CCl

Posted Date:-2022-01-12 00:01:20


Question:
Methyi orange is

1.Pink in acidic medium, yellow in basic medium

2.Yellow in acidic medium, pink in basic medium

3.Colourless in acidic medium, pink in basic medium

4.Pink in acidic medium colourless in basic medium

Posted Date:-2022-01-12 01:03:50


Question:
Name the reagent from the following which can be used to distinguish zine nitrate solution from
magnesium nitrate

1.NH,OH(aq)

2.NaOl(aq)

3.BaCl

4.HS0

Posted Date:-2022-01-12 01:18:42


Question:
Select the element in period 3 whose electron affinity is zero :

1.Neon

2.Sulphur

3.Sodium

4.Argon

Posted Date:-2022-01-11 23:45:22


Question:
The formula which expresses the actual number of each kind of atom present in the molecule of a
compound is called:

1.Empirical Formula

2. Molecular Formula

3.Structural Formula

4.None of these

Posted Date:-2022-01-12 01:20:00


Question:
The formula which gives the simple ratio of each kind of atoms present in the molecule of a compound
is called :

1.Molecular Formula

2.Empirical Formula

3. Structural Formula

4.None of these

Posted Date:-2022-01-12 01:06:20


Question:
The hydroxide which is soluble in excess of NaOH is:

1.Zn(OH)

2.Fe(OH)

3.Fe(OH)s

4.Al(OH)s

Posted Date:-2022-01-12 01:10:03


Question:
The metallic electrode which does not take part in an electrolytic reaction?
(Inert electrode)

1.Cu

2.Ag

3.Pt

4.Ni

Posted Date:-2022-01-12 01:11:28


Question:
The molecule containing a triple covalent bond is

1.Ammonia

2.Methane

3.Water

4.Nitrogen

Posted Date:-2022-01-12 00:55:20


Question:
The one which is composed of all the three kinds of bond (ionic; covalent and coordinate bond) is:

1.Sodium chloride

2.Ammonia

3.Carbon tetrachloride

4.Ammonium chloride

Posted Date:-2022-01-12 00:44:32


Question:
The particles present in strong electrolytes are:

1.only molecules

2.mainly ions

3.ions and molecules

4.only atoms

Posted Date:-2022-01-12 00:42:42


Question:
The precipitate of which of the following compounds is soluble in excess of ammonia solution?

1.Iron(II) chloride

2.Magnesium chloride

3.Copper(II) sulphate

4.Lead nitrate

Posted Date:-2022-01-12 00:31:59


Question:
The starting material which takes part in chemical reaction is called:

1.product

2.reactant

3.catalyst

4.starter

Posted Date:-2022-01-12 00:59:27


Question:
The type of bonding in HCl molecule is :

1.Polar covalent bond

2.Pure covalent

3.Non-polar

4.Hydrogen bonding

Posted Date:-2022-01-12 00:27:40


Question:
What happens when a solution of an acid is mixed with a solution of a base in a test tube?

1.Temperature of the solution decreases.

2.Temperature of the solution increases.

3.Temperature of the solution remains the same

4.None of the above

Posted Date:-2022-01-11 23:59:32


Question:
What indicates the actual number of constituent atoms in a molecule?

1.Empirical formula

2.Molecular formula

3. Empirical mass

4.Molecular mass 3. Empirical mass

Posted Date:-2022-01-12 00:41:27


Question:
What is formed when zinc reacts with sodium hydroxide?

1.Zinc hydroxide and sodium

2.Sodium zincate and hydrogen gas

3.Sodium Zinc oxide and hydrogen gas

4.Sodium zincate and water

Posted Date:-2022-01-12 00:57:42


Question:
What is the electronic configuration of Li ?

1.1,2

2. 1,1,1

3. 2,1

4.None of these

Posted Date:-2022-01-12 01:27:06


Question:
When dilute sodium chloride is electrolysed using graphite electrodes, which cation is discharged at the
cathode most readily?

1.Na

2.OH

3.H+

4.Cr

Posted Date:-2022-01-12 01:20:59


Question:
When two compounds R and S have same percentage composition. Then the compounds R and S are:

1.identical

2.isomer

3.either identical or isomer

4.All are correct

Posted Date:-2022-01-12 00:00:20


Question:
Which is the most electronegative?

1.A

2.D

3.O

4.J

Posted Date:-2022-01-12 01:24:04


Question:
Which of the following is the atomic number of a elemerit that tKTs basic oxide?

1.18

2.17

3.19

4.15

Posted Date:-2022-01-12 00:50:33


Question:
Which of these will act as a non electrolyte ?

1.Liquid carbon tetrachloride

2.Acetic acid

3.Sodium hydroxide aqueos solution

4.Potassium chloride aqueous solution

Posted Date:-2022-01-12 00:48:48


Question:
Which one of the following salt solutions on reaction with excess of ammonium hydroxide solution
results finally in dissolution of the precipitate first formed ?

1.AICl(aq)

2.FeSO,(aq)

3. Fe(SO4)3(aq)

4.ZnSO(aq)

Posted Date:-2022-01-12 00:46:19


Question:
Which one of the following salt solutions on reaction with excess sodium hydroxide solution gives a
clear solution finally ?

1.Pb(NO3)2 (aq)

2.CuSO,(a9)

3.FeCl3 (aq)

4.ZnSO4 (aq)

Posted Date:-2022-01-12 00:04:15


Question:
Which one of the following salts does not contain water of crystallisation?

1.Blue vitriol

2.Baking soda

3.Washing soda

4.Gypsum

Posted Date:-2022-01-12 00:30:26


Question:
Why do atoms share electrons in covalent bonds?

1.To increase their atomic numbers

2. To attain a noble-gas electron configuration

3. To become more polar

4.To become ions and attract each other

Posted Date:-2022-01-12 01:08:53


Question:
Write the formula of the compound between B and H.

1.BH

2.B2H

3.BH2

4.(BH)

Posted Date:-2022-01-12 01:26:11


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