ICSE X/ICSE 10th Class Chemistry MCQ Question Answer Sample Test,Sample questions

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Question:
A chloride which forms a precipitate that is soluble in excess of anmmonium hydroxide is

1.Calcium chloride

2.Ferrous chloride

3.Ferric chloride

4.Copper chloride

Posted Date:-2022-01-11 07:12:22


Question:
A compound which liberates reddish brown gas around the anode during electrolysis in its molten state : 

1.Sodium chloride

2.Copper

3.Copper (II) sulphate

4.Lead (II) Bromide

Posted Date:-2022-01-11 06:43:54


Question:
A polar covalent bond will be formed in which one of these pair of atoms

1.HF

2.H

3.Cl

4.O2

Posted Date:-2022-01-11 07:16:06


Question:
A solution of the compound which gives a dirty green precipitate with sodium hydroxide.

1.Ammonium sulphate

2.Lead carbonate

3.Ferrous sulphate

4.Chlorine

Posted Date:-2022-01-11 07:24:31


Question:
Alkalis are : 

1.acids, which are soluble in water

2.acids, which are insoluble in water

3.bases, which are insoluble in water

4.acids, which are insoluble in water

Posted Date:-2022-01-11 07:26:32


Question:
Aluminum has a tendency to lose :

1.2 electrons

2.1 electron

3.3 electrons

4.4 electrons

Posted Date:-2022-01-11 07:28:30


Question:
An acid which is used in soda wash and in aerated drinks is __________.

1.Citric acid

2.Carbonic acid

3.Acetic acid

4.Boric acid

Posted Date:-2022-01-11 06:13:24


Question:
An element having atomic number 17 and belongs to halogens is _____________.

1.Li

2.F

3.K

4.Cl

Posted Date:-2022-01-11 06:56:09


Question:
An element having atomic number 19 and belongs to Alkali metals is ___________.

1.Li

2.F

3.K

4.Cl

Posted Date:-2022-01-11 06:34:13


Question:
An element having electronic configuration 2, 8, 18, 3 belongs to which group of the Modern Periodic
Table?

1.13 group

2.3rd group

3.18th group

4.15th group

Posted Date:-2022-01-11 06:50:17


Question:
An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave Carbon 38.7%
and Hydrogen 9.67%. The empirical formula of the compound would be

1.CH3O

2.CH2O

3.CHO

4.CH4O

Posted Date:-2022-01-11 07:30:22


Question:
Anhydrous iron(III) chloride is prepared by :

1.Direct combination

2.Simple displacement

3.Decomposition

4.Neutralization

Posted Date:-2022-01-11 06:46:36


Question:
Arrange the following as per instruction given in the brackets Cl, E, Br I (Increasing order of electron
affinity)

1.Br <I<F <Cl

2.I< Br < Cl <F

3.Br< Cl<I<F

4.F<Cl< Br<1

Posted Date:-2022-01-11 07:22:30


Question:
Arrange the following as per instruction given in the brackets: Cs Na Li R ( increase order or metallic character)

1. Li< Na < K < Rb< Cs

2.Li< Na <Cs < SK <Rb

3. K< Rb< Cs <Li < Na

4.Cs<Li< Na < K < Rb

Posted Date:-2022-01-11 07:11:12


Question:
During electrolysis of NaCl, the gas discharged at the anode is :

1.Chlorine

2.Oxygen

3.Hydrogen

4.None of these

Posted Date:-2022-01-11 06:25:06


Question:
How many valence electrons are Mg?

1.1

2.2

3.3

4.4

Posted Date:-2022-01-11 06:58:00


Question:
How many water molecules does hydrated calcium sulphate contain ?

1.5

2.10

3.7

4.2

Posted Date:-2022-01-11 06:47:39


Question:
If element X forms a chloride with the formula XCl3, then X would most likely belong to the same
group of the Moderm Periodic Table as :

1.Na

2.Br

3.Al

4.Mg

Posted Date:-2022-01-11 06:14:16


Question:
ldentify the molecule with a single covalent bond.

1.CO2

2.CO

3.C12

4.N2

Posted Date:-2022-01-11 06:49:10


Question:
Lithium chloride is formed by transfer of electrons, which elements is getting oxidised in the process of
formation ?

1.Lithium

2.Chlorine

3.Both1 and 2

4.None of these

Posted Date:-2022-01-11 05:59:46


Question:
Magnesium hydroxide is _____________.

1.Monoacidic alkali

2.Diacidic alkali

3.Triacidic alkali

4.All of these

Posted Date:-2022-01-11 06:26:30


Question:
Na CO,10H,O is:

1.washing soda

2.baking soda

3. bleaching powder

4.tartaric acid

Posted Date:-2022-01-11 06:16:51


Question:
Name an element, which reacts vigorously with water.

1.Argon

2.Boron

3.Calcium

4.Uranium

Posted Date:-2022-01-11 07:41:54


Question:
Name the transition metal.

1.Chromium

2.Sulphur

3.Calcium

4.Oxygen

Posted Date:-2022-01-11 07:40:29


Question:
Name two elements in same group of periode Table 

1.Oxygen and Uranium

2.Oxygen and sulphur

3.Calcium and Hydrogen

4.Cromium and Rubidium

Posted Date:-2022-01-11 07:39:41


Question:
Naphthalene contains 93.75% C and the rest hydrogen. Molecular mass of naphthalene is 18 Find its
empirical formula.

1.C5H2

2.C6H4

3.C5H10

4.C5H10

Posted Date:-2022-01-11 07:18:52


Question:
Relation between vapour density and molecular weight

1.Molecular weight = 2/ Vapour density

2.Molecular weight= 2x Vapour density

3.Molecular weight x 2= Vapour density

4.None of these

Posted Date:-2022-01-11 06:22:11


Question:
Sodium carbonate is a basic salt because it is a salt at a:

1.strong acid and strong base

2.weak acid and weak base

3.strong acid and weak base

4. Weak acid and strong base

Posted Date:-2022-01-11 07:14:55


Question:
The electronic configuration of Mg is ___________.

1.2,8,1

2.8,2

3.2,8,2

4.2,8

Posted Date:-2022-01-11 06:52:01


Question:
The empirical formula and molecular mass of a compound are CHO and 180g respectively. What will
be the molecular formula of the compound ?

1.CHO

2.CH2O

3.CHO

4.CH2O

Posted Date:-2022-01-11 06:45:34


Question:
The oxide and hydroxide of which metal is amphoteric :

1.Zinc

2.Copper

3.Iron

4.Manganese

Posted Date:-2022-01-11 06:18:27


Question:
The salt which on hydrolysis forms acid is _______________.

1. Iron chloride

2.Aluminium acetate

3.Sodium chloride

4.All the above

Posted Date:-2022-01-11 06:39:18


Question:
The vessel in which electrolysis of lead bromide is carried out is :

1.Clay crucible

2.Glass vessel

3.Silica crucible

4.Aluminium vessel

Posted Date:-2022-01-11 07:20:32


Question:
Valency of aluminium is:

1.2

2.3

3.4

4.5

Posted Date:-2022-01-11 06:15:47


Question:
What is the colour when methyl orange is added to Sulphuric acid ?

1.Pink

2.Red

3.Blue

4.Colourless

Posted Date:-2022-01-11 06:28:01


Question:
When fused lead bromide is electrolysed we observe:

1.a silver grey deposit at anode and a reddish brown deposit at cathode

2.a silver grey deposit at cathode and a reddish brown deposit at anode

3.a silver grey deposit at cathode and reddish brown fumes at anode

4.silver grey fumes at anode and reddish brown fumes at cathode.

Posted Date:-2022-01-11 07:01:28


Question:
Which element form very corrosive acid ?

1.Chromic acid produced chromium

2.Oxalic acid produced by oxygen

3.Calcium carbonate acid produce by acid

4.Ferric oxide produced by iron

Posted Date:-2022-01-11 07:45:29


Question:
Which soln. becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it.

1.Copper nitrate

2.Iron [I] sulphate

3.Iron [III] chloride

4. Lead nitrate

Posted Date:-2022-01-11 07:35:32


Question:
Which type of bond is present in carbon tetrachloride?

1.lonic bond

2.Covalent bond

3.Coordinate bond

4.None of these

Posted Date:-2022-01-11 06:30:06


Question:
Write the name of a non-metal of group 15.

1.Nitrogen

2.Calcium

3.Phosphorous

4.None of these

Posted Date:-2022-01-11 07:00:00


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