CBES Board Class 9/FUNDAMENTALS OF CHEMISTRY MCQS class 9 SET 2 Sample Test,Sample questions

Question:
 A mole of any substance contains


1. 6022 * 1022 particles

2.6022 * 1023 particles

3. 6022 * 1024 particles

4. 6022 * 1025 particles


Question:
 Compounds have atoms of





 

 

1.same sizes

2.different sizes

3.same electrons

4.different electrons


Question:
 When halogens are exposed to sunlight they split up in to

1. atoms

2. ions

3. radicals

4. molecules


Question:
1 mole of a substance refers to


 

 

1. molar mass

2.atomic mass

3.electron mass

4.neutron mass


Question:
6022 * 1023 atoms of Sulphur contains




1.2 moles

2.3 moles

3.4 moles

4.1 mole


Question:
A balloon filled with 5g of hydrogen contains


 

1. 248 moles of H2

2. 348 moles of H2

3. 448 moles of H2

4. 5 moles of H2


Question:
A free radical has

1. odd number of electrons

2. even number of electrons

3. no electrons

4.none of above


Question:
A free radical has

1. unpaired electrons

2. paired electrons

3. no electrons

4. even number of electrons


Question:
A hydrogen atom is

 

 

1. 840% as massive as C-12

2. 10% as massive as C-12

3. 20% as massive as C-12

4. 30% as massive as C-12


Question:
A science that examines the material this universe contains and changes in them is called





 

 

1.Chemistry

2.Physics

3.Biology

4.Geography


Question:
A substance whose all atoms have the same atomic number is

 

 

1. molecule

2.atom

3. element

4. ion


Question:
An ionic compound is electrically





 

 

1.neutral

2.positively charged

3.negatively charged

4.none of above


Question:
An oxide ion has -2 charge because




1.oxygen looses two electrons

2.oxygen gains two electrons

3.oxygen becomes neutral

4.oxygen gains 3 electrons


Question:
Branch of chemistry dealing with the plantation and overcoming greenhouse effect is

 

 

1. Biochemistry

2. Organic chemistry

3. Environmental chemistry

4.Inorganic chemistry


Question:
Cookies and bread rise due to

 

 

1. conversion of washing soda into CO2

2. conversion of H2O in to CO2

3. conversion of baking soda into O2

4. conversion of baking soda in to CO2


Question:
Gram molecular mass of C6H12O6 is




1.18016g

2.180096g

3.585g

4.70g


Question:
If one mole of carbon contains x atoms then the number of atoms in 12g of Mg are





 

 

1.x

2.05x

3.2x

4.15x


Question:
In glucose the simplest ratio between C H and O is





 

 

1.840625

2.126400463

3.4306713

4.127789352


Question:
Negatively charged ions are called





 

 

1.cations

2.anions

3.ion

4.none of above


Question:
Over 70% of earths crust is covered with


 

 

1. water

2. land

3. coal

4.trees


Question:
Species present in a substance refers to




1.atoms

2.ions

3.molecules

4.representative particles


Question:
The branch of chemistry which deals with a substance containing carbon is called





 

 

1.carbon chemistry

2.inorganic chemistry

3.organic chemistry

4.environmental chemistry


Question:
The formula mass indicates the simplest ration between

1. cations only

2.anions only

3. atoms

4. cation and anions


Question:
The formula mass of NaCl is





 

 

1.575 amu

2.585 amu

3.595 amu

4.600 amu


Question:
The formula which gives the simplest whole-number ratio of atoms is




1.empirical formula

2.molecular formula

3.chemical formula

4.actual formula


Question:
The gram atomic mass of Zn is

1. 23g

2. 12g

3. 6354g

4. 5667g


Question:
The list which contains only elements is

 

 

1. air water oxygen

2. Hydrogen oxygen brass

3. Air water fire earth

4. Calcium Sulphur carbon


Question:
The mass number of an atom is

 

1. number of protons only

2. number of neutrons only

3. number of electrons

4. number of protons and neutrons


Question:
The mass of 1 mole of sucrose is




1.320g

2.342g

3.341g

4.340g


Question:
The mass of an atom relative to C-12 is

 

 

1. atomic mass

2. atomic number

3. nucleon number

4. relative atomic mass


Question:
The mass of carbon present in 44g of carbon dioxide is




 

 

1.12g

2.6g

3. 44g

4.24g


Question:
The matter is anything that occupies





 

 

1.space only

2.mass only

3.time

4.space and mass


Question:
The molecular formula gives





 

 

1.simplest ratio of atoms

2.actual whole number ratio of atoms

3.whole number ratio of atoms

4.natural number ratio of atoms


Question:
The molecular mass of glucose is




1.180096 amu

2.190096 amu

3.181096 amu

4.130096 amu


Question:
The number of atoms in 5 moles of nitrogen atom is





 

 

1.301 * 1024

2.41 * 1030

3.39 * 1032

4.5 * 1056


Question:
The number of atoms of hydrogen in 2 moles of NH3




1.5 * 1023

2.301 * 1023

3.361 * 1024

4.4 * 1023


Question:
The number of protons and neutrons in the nucleus if the atomic number of an element is 17 and the mass number is 35 is


1. 17 and 18

2. 17 and 19

3.17 and 20

4. 17 and 21


Question:
The number of protons in the nucleus constitute its

1. atomic mass

2. atomic number

3. nucleon number

4. number of neutrons


Question:
The relative atomic mass of Na is

 

 

1. 1008 amu

2. 229898 amu

3. 269815 amu

4. 159994 amu


Question:
The smallest part of an element that cannot exist as a free state is



 

 

1. ion

2. charge

3.atom

4.molecule


Question:
The substance which has a formula mass of 1335 amu is




1.MgCl2

2.S2Cl2

3.BCl3

4.AlCl3


Question:
Which of the following is present in vinegar?





 

 

1.10% acetic acid

2.5%acetic acid

3.7% acetic acid

4.8% acetic acid


More MCQS

  1. CLASS 9 FUNDAMENTALS OF CHEMISTRY MCQS
  2. FUNDAMENTALS OF CHEMISTRY MCQS class 9 SET 2
  3. Electrochemistry Multiple Choice Questions Class 9
  4. PHYSICAL STATES OF MATTER MCQS CLASS 9
  5. Solutions Multiple Choice Questions CLASS 9
  6. STRUCTURE OF ATOMS MCQS CLASS 9
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!