ICSE X/ Sample Test,Sample questions

  1. Home
  2. Back

Question: 
 In the formation of CD by bonding between C and D. Which is oxidised ?

1.C

2.D

3.Both 1 and 2

4.None of these

Posted Date:-2022-01-11 05:43:17

Question: 
A compound consists of non-polar molecules only, which of the following is true regarding it:

1. It forms ionic bond

2.It has high m.p.

3.It is soluble in organic solvents

4.It is a conductor of electricity.

Posted Date:-2022-01-11 05:28:27

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

1.Li

2.F

3.K

4.CI

Posted Date:-2022-01-11 04:47:13

Question: 
Due to the presence of strong electrostatic fors of attraction between ions, jonic comp0unds

1.Have high melting and boiling points.

2.Conduct electricity in solid state

3.Dissolve in kerosene

4.All of these

Posted Date:-2022-01-11 05:31:22

Question: 
Halogen are:

1.Strong oxidising agent

2.Weak reducing agent

3.Strong reducing agent

4.Weak reducing agent

Posted Date:-2022-01-11 04:45:36

Question: 
How many electrons are required by oxygen atom to attain nearest noble gas configuration ?

1.1

2.2

3.3

4.4

Posted Date:-2022-01-11 04:49:26

Question: 
If electrons are added to an atom, it is :

1.Oxidised

2.Reduced

3.Both 1 and 2

4.None of these

Posted Date:-2022-01-11 05:22:11

Question: 
If relative molecular mass of a gas is 38, what will be its vapour density ?

1.76

2.19

3.40

4.Zero

Posted Date:-2022-01-11 03:55:51

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

1.Different percentage composition.

2.Different molecular weights,

3.Same viscosity.

4.Same vapour density.

Posted Date:-2022-01-11 04:40:13

Question: 
If we are given two test tubes marked A and B. In first test tube, NH,OH solution is taken and in other
NaOH solution is taken. Which salt is used to identify them?

1.Zinc salt

2.Iron salt

3.Calcium salt

4.Copper salt

Posted Date:-2022-01-11 04:09:55

Question: 
In which of the following molecule double bond is present ?

1.Nitrogen

2.Oxygen

3.Fluorine

4.Neon

Posted Date:-2022-01-11 03:59:02

Question: 
NaCl conducts electricity due to the presence of:

1.Molecules

2.lons

3.Group of atoms

4.All of these

Posted Date:-2022-01-11 05:26:08

Question: 
On adding ammonia hydroxide solution to a solution of a salt, a dirty green precipitate appears. This
precipitate, however, remains insoluble on addition of an excess of ammonia solution. Which metal
solution is present ?

1.Na

2.Zn

3.Fe

4.Al

Posted Date:-2022-01-11 04:03:14

Question: 
Salts of which elements are generally coloured:

1.Transition

2.Normal

3.Lanthanides

4.Inner-transition

Posted Date:-2022-01-11 04:38:44

Question: 
The cell which converts electrical energy to chemical energy is____________

1.Electrochemical cell

2. Electrolytic cell

3.Electrodes

4.Secondary cell

Posted Date:-2022-01-11 03:58:12

Question: 
The electrode connected to positive terminal of the battery is called________.

1.Cathode

2.Anode

3.Electrode

4. None of these

Posted Date:-2022-01-11 04:29:51

Question: 
The element with lowest ionization energy among the following is:

1.Li

2.N

3.K

4.Rb

Posted Date:-2022-01-11 05:29:38

Question: 
The empirical formula of a compound is CH and its molecular mass is 78, its molecular formula is

1.CH

2.CHs

3.CH

4.CH

Posted Date:-2022-01-11 04:04:30

Question: 
Two solutions A , B and C having pH 2, 9 and 11. Which solution will give no colour with
Phenolphthalein indicator?

1.A

2.B

3.C

4.None of these

Posted Date:-2022-01-11 05:25:04

Question: 
What do you observe when caustic soda solution is added to the following solution: first a little and
then in excess in copper sulphate ?

1.A pale blue ppt. of copper (II) hydroxide is obtained which is insoluble in excess of caustic soda solution.

2.A pale blue ppt. of copper (II) hydroxide is obtained which is soluble in excess of caustic soda solution

3.Awhite ppt. of copper (II) hydroxide is obtained which is insoluble in excess of caustic soda solution.

4.A white ppt. of copper (II) hydroxide is obtained which is soluble in excess of caustic soda solution

Posted Date:-2022-01-11 03:54:51

Question: 
What is the colour of NaOH in Phenolphthalein?

1.Red

2.Blue

3.Green

4.Pink

Posted Date:-2022-01-11 04:33:45

Question: 
What is the empirical formula of a compound containing 60.0% of nitrogen and 40.0% of Oxygen by mass?

1.NO

2.NO2

3.NO

4.N2O

Posted Date:-2022-01-11 04:07:16

Question: 
What is the value of n if molecular mass is 348 and empirical formula of compound is CHO?

1.2

2.6

3.9

4.10

Posted Date:-2022-01-11 04:32:32

Question: 
What will be the colour of salt formed when NaOH is treated with aluminium oxide ?

1.Green

2.White

3.Brown

4.Red

Posted Date:-2022-01-11 04:05:30

Question: 
What will be the general formula when B and D react?

1.BD2

2.BD

3.BD2

4.BD4

Posted Date:-2022-01-11 05:42:24

Question: 
When two compounds R and S have same percentage composition. Then the compounds R and 5 are:

1.identical

2.isomer

3.either identical or isomer

4.all are correct

Posted Date:-2022-01-11 04:42:59

Question: 
Which acid is used in eyewash ?

1.Citric acid

2.Tartaric acid

3.Acetic acid

4.Boric acid

Posted Date:-2022-01-11 04:01:17

Question: 
Which is the most reactive halogen among the following ?

1.Fluorine

2.Chlorine

3.Iodine

4.Bromine

Posted Date:-2022-01-11 04:11:06

Question: 
Which of the following can be extracted by reducing agents like Carbon, carbon monoxide etc ?

1.K

2.Zn

3.Mg

4.Au

Posted Date:-2022-01-11 04:37:22

Question: 
Which of the following is a non-electrolyte?

1.HCI

2.Acetic acid

3.Kerosene

4.NaCl

Posted Date:-2022-01-11 04:08:32

Question: 
Which of the following is a weak electrolyte ?

1.HCI

2.Nitric acid

3.Oxalic acid

4.Sulphuric acid

Posted Date:-2022-01-11 03:56:47

Question: 
Which of the following is correct statement ?

1.Sodium is smaller in size than lithium.

2.Chlorine has more electron affinity than sulphur

3.Calcium has higher value of ionisation potential than magnesium

4.Alkali metals are not lustrous.

Posted Date:-2022-01-11 04:02:23

Question: 
Which of the following is obtained at anode during the electrolysis of lead bromide ?

1.Pb

2.Br

3.Both 1 and 2

4.None of these

Posted Date:-2022-01-11 04:30:51

Question: 
Which of the following is true for alkali metals ?

1.Strong Oxidising agent

2.Weak reducing agent

3. Strong reducing agent

4.Weak oxidising agent

Posted Date:-2022-01-11 04:36:26

Question: 
Which of the following is true for alkali metals?

1.Strong oxidising agent

2.Weak reducing agent

3.Strong reducing agent

4.Weak oxidising agent

Posted Date:-2022-01-11 04:27:26

Question: 
Which of the following is used in the manufactures of bleaching powder and in softening of hard
water?

1.NaOH

2.Ca(OH)

3.KOH

4.Mg(OH);

Posted Date:-2022-01-11 04:50:49

Question: 
Which one is getting reduced during the formation of AD?

1.A

2.D

3.Both 1 and 2

4.None of these

Posted Date:-2022-01-11 05:44:17

Question: 
Which one of the following salt solutions on reaction with excess of ammonium hydroxide solution
gives a deep blue solution ?

1.FeCl(aq)

2.CuSO(aq)

3.AlSOsl(aq)

4. ZnSOA(aq)

Posted Date:-2022-01-11 04:41:26

Question: 
Which type of bond will be formed when A and D react?

1. lonic bond

2.Covalent bond

3.Coordinate bond

4. None of these

Posted Date:-2022-01-11 05:41:34

Posted on by R4R Team

More MCQS

  8. help4info.com
  9. help4info.com
  10. help4info.com
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!