Chemistry Chapter No.1 Basic Concepts 1st Year Online MCQs

Chemistry MCQs 1st Year Chapter No.1 Basic Concepts, FSc, First Year Multiple Choice Questions, Medical College ( MDCAT ) , ECAT & University Admission Entry Test Exams Online Preparation, Chapter Wise Question Answers Notes in Pdf, Old Board Papers reference with Each Question, All Queries accommodated within 24 Hours. Click here to Contact us for any Query/Question regarding Exams.

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Book Name :  Chemistry
Chapter No. 01
Chapter Name : Basic Concepts 
Total MCQ from Text Book :  66
Book Version  :

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 11 ( F.Sc. Intermediate)
Total Marks : 66
Total Time :   66 minutes



1 / 66

1 g ions of CO-23 weighs:

2 / 66

Number of moles of water present in 90 g of water are:

3 / 66

Which of the following sample of CO2 has least number of molecules?

4 / 66

Isotopes differ in:

5 / 66

The highest number of molecules are present in:

6 / 66

1.5 mol of 02 combines with Mg to form MgO. The mass of Mg (atomic mass 24) that has combined is:

7 / 66

The mass of glucose which contains 6.02 x 1022 molecules:

8 / 66

1 mole of CH4 contains

9 / 66

The total number of atoms in 64 g of sulphur dioxide is:

10 / 66

Percentage yield is the ratio

11 / 66

Which of the following statement is not true?

12 / 66

One amu is equal to

13 / 66

The highest percentage of oxygen by weight is present in :

14 / 66

16g of H2 reacts with 16g of 02. The mass of H2O formed is:

15 / 66

Number of atoms present in 1 mole of NaOH:

16 / 66

Point out set of specie which are iso-electronic?

17 / 66

The number of moles of CO2 containing 8g of oxygen:

18 / 66

Mass spectrometer separates different positive isotopic ions on the basis of their:

19 / 66

In combustion analysis, the weight of CO2 absot a Pr is increased due to formation of:

20 / 66

Gold has number of isotopes:

21 / 66

Which one is a molecular ion?

22 / 66

The number of molecules present in 3g of water is:

23 / 66

Which of the following leads to the formation of compound?

24 / 66

It is not a molecular ion:

25 / 66

112 g iron reacts with steam to produce H2 and Fe(OH)2 Amount of H2 produced in this reaction

Fe+2H2O ------> Fe(OH)2 + H2

26 / 66

The radius of atoms are in the range:

27 / 66

Mass of Sodium in 53g of Na2CO3 is:

28 / 66

22414 cm3 of an ideal gas is equal to:

29 / 66

Which of the following is approximately 3400 times lighter than haemoglobin molecule?

30 / 66

How many peaks would appear in mass spectrograph when we run C-12:

31 / 66

Maximum number of atoms are present in:

32 / 66

CO+ is an example of:

33 / 66

Which one is the empirical formula of a compound?

34 / 66

The mass of one mole of electron is:

35 / 66

Out of 280 isotopes that occur in nature, number of isotopes with even mass number and even atomic number:

36 / 66

8g of 02 reacts with 8g I-12, the mass of H2O formed is:

37 / 66

The number of moles of CO2 which contain 8 g of oxygen:

38 / 66

Silver has number of isotopes:

39 / 66

The largest number of molecules-are present in:

40 / 66

A ring contains 1.2 g of diamond. No. of carbon atoms in this diamond is:

41 / 66

Tin (element) has number of isotopes:

42 / 66

Which is a different cation?

43 / 66

The volume occupied by 1.4 g of N2 at S.T.P. is:

44 / 66

Which of the following does not have same empirical and molecular formula?

45 / 66

A limiting reactant is the one which:

46 / 66

The number of atoms in 4.25g of NH3 is approximately:

47 / 66

How many grams of water will be formed when 16g Hydrogen reacts with 32g oxygen?

48 / 66

Isotopes donot differ in:

49 / 66

The percentage of Sodium

50 / 66

Haemoglobin is:

51 / 66

Many elements have fractional atomic masses. This is because:

52 / 66

What is the maximum mass of Cr that can be extracted from 76 g of Cr203? (Retative mass of Cr.= 52)

53 / 66

The diameter of, atoms are in the order, according to X-ray work:

54 / 66

One mole of SO2 contains:

55 / 66

Fluorine atom and fluoride ions:

56 / 66

When we compare one mole each of 02 and H2, then we observe:

57 / 66

The mass of Aluminium in 51 g of Al203 is:

58 / 66

In a mass spectrum, the height of the peak explains:

59 / 66

"Isotopy" was discovered first of all by:

60 / 66

Gold, Arsenic, Fluorine and Iodine are:

61 / 66

27g of al will react completely with how much mass of O2 to produce AlO2O3

62 / 66

The volume of 2.2g of CO2 at STP is:

63 / 66

Palladium has no of isotopes:

64 / 66

Total number of electrons present in 20g of CaCO3:

65 / 66

The volume occupied by 1.6 g of 02 at STP:

66 / 66

Formation of uninegative ion is:

Your score is

The average score is 36%


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