10th Class Chemistry Important MCQs Chapter No.1

MCQ Chemistry Class 10th Chapter No.1 Chemical Equilibrium




CHEMISTRY – Class 10th
Chapter Name : Chemical Equilibrium
Chapter No. 1
Multiple Choice Questions from Text Book
Note : All MCQ’s selected in this test are from OLD Matric board Papers and Text Book.




Book Name :  CHEMISTRY
Chapter No.  1
Chapter Name : Chemical Equilibrium
Total MCQ from Text Book :  68
Book Version  :
2023

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 : Matric Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 10th ( Matric)
Total Marks : 68
Total Time :   68 minutes 




محترم اساتذہ کرام و  پیارے طلبا و طالبات
ہم نے یہ ویب سائٹ آپ کے فائدے اور امتحانی تیاری کو مدنظر رکھ کر بنائی ہے۔ اگر آپ کو اس سے کوئی فائدہ ہوتا ہے اور آپ کو یہ ایم سی کیوز امتحان کی تیاری کے لئے سود مند ہیں ۔ تو آپ اپنے  کم سے کم دس دوستوں کو اس کا لنک ضرور  شئیر کریں۔تاکہ اس سے آپ کے  بہت سارے دوسرے دوستوں کا فائدہ ہوسکے۔



 

Note : This website is prepared for your Exam preparation. If you get any benefit from this website than Share Website link of these MCQs with your friends.



361

Chemistry Class 10th Chapter No 1 Chemical Equilibrium

1 / 68

The reaction will attain the equilibrium if:

2 / 68

The gas we exhale during respiration is:

3 / 68

For the reaction between N2 and H2to form NH3 the unit of Kc is: 

4 / 68

Specific rate constant for forward reaction is represented as:

5 / 68

In an irreversible reaction dynamic equilibrium:

6 / 68

At equilibrium state when reaction ceases to proceed, it is called:

7 / 68

 At dynamic equilibrium state:

8 / 68

The percentage of nitrogen in atmosphere is:

9 / 68

At dynamic equilibrium:-

10 / 68

When the magnitude of Kc is very large it indicates:

11 / 68

Macroscopic characteristic of backward reaction is:

12 / 68

For the reaction:    N2O4        ⇌    2N2 value of Kc is:

13 / 68

The correct representation of reversible reaction between 112 and 12 is:

14 / 68

A reverse reaction is one that:

15 / 68

Dynamic means:

16 / 68

Reactions which have comparable amounts of reactants and products at equilibrium state have:

17 / 68

When a system is at equilibrium states:

18 / 68

Macroscopic characteristic of forward reaction is:

19 / 68

For a reaction PC13 + Cl    ⇌     PC15   , Equilibrium constant expression is:

20 / 68

For reaction H2 + I2 ⇌ 2HI3 the unit of Kc:  

21 / 68

The major components of atmosphere is:

22 / 68

In the lime kiln, the reaction:
CaCo3(s) -----------> CaO(s) + CO2(g)     goes to completion because.

23 / 68

Balance equation for the reaction of nitrogen with hydrogen is:

24 / 68

For a reaction between PCI3 and Cl2 to form PCI5, the units of K, are:

25 / 68

 The characteristic of reversible reaction is :

26 / 68

In following reaction the colour of iodine is purple but the product is:

H2 + I2   →   2HI

27 / 68

Which one is not macroscopic characteristic of dynamic equilibrium:

28 / 68

Nitrogen and hydrogen were together to make ammonia:

N2 +3H2 ⇌  2NH3           Kc = 2.86 mol -2 dm 6

What will be present in the equilibrium mixture?

29 / 68

Plants consume carbon dioxide and release in atmosphere:

30 / 68

Oxidation of carbon monoxide goes to completion at:

31 / 68

When the magnitude of Kc is very large it indicates:

32 / 68

For the reaction,   2CO + O2  ⇌    2CO2   The value of Kc is:

33 / 68

The value of Kc depends only on:

34 / 68

If Qc < Kc the:

35 / 68

When the magnitude of Kc is very small it indicates:

36 / 68

For the reaction:   aA + bB  ⇌   cC + dD  the expression for chemical equilibrium constant is:

37 / 68

The product of following reaction is:            2H2 + O2   →    ?

38 / 68

For the reaction:  aA + bB  ⇌   cC + dD  Expression for rate of reverse reaction is...

39 / 68

The gas we inhale during breathing is:

40 / 68

For the reaction: N2 + 3H2 ⇌ 2NH3   the expression for rate constant is

41 / 68

Which one of the following statement is not correct about active mass?

42 / 68

THe Characteristics of reversible reactions are the following except.......

43 / 68

The lives of aquatic plants and animals depend on the oxygen which is:

44 / 68

For [H2] =0.05 mol dm-3    [I2] = 0.06 mol din-3 and (HI) = 0.49 mol dm-3 the Value of Kc is:

45 / 68

The rate at which a substance reacts is directly proportional to its active mass and the rate of reaction is directly proportional to the product of active masses of the reacting substances is called:

46 / 68

Describe the relationship between active masses of the reactants and rate of reaction.

47 / 68

The substances that combine in a chemical reaction are called:

48 / 68

Reaction goes from right to left if:

49 / 68

At chemical equilibrium state:

50 / 68

The reactions do not stop and take place on both directions at equal rate and attain the equilibrium state is called:

51 / 68

Specific rate constant for backward reaction is:

52 / 68

CaCO3 →  CaO +  ?  

 During given reaction the gas evoked is:

53 / 68

The reaction in which all the reactants arc converted into products:

54 / 68

For the reaction:   N2(g) + O2(g)   ⇌  2NO(g)  the expression for equilibrium constant is:

55 / 68

The percentage of oxygen in atmosphere is:

56 / 68

The Product of the reaction CaO + CO2  →  ?

57 / 68

Law of mass action is given by:

58 / 68

If the numerical value of Qc (reaction quotient) is less than Kc then;

59 / 68

Molar concentration (mol dm-3) is expressed as:

60 / 68

Kc is equilibrium constant where:

61 / 68

The characteristic of irreversible reaction:

62 / 68

Unit of Kc for reaction N2 + 3H2 ⇌ 2NH is:

63 / 68

For the reaction,    2A(g) + 13(g)  ⇌ 3C(g)     the expression for the equilibrium constant is:

64 / 68

When the magnitude of K, is very small it indicates:

65 / 68

If numerical value of Kc is neither small nor large then:

66 / 68

For the reaction:  aA + bB  ⇌   cC + dD Expression for forward reaction according to law of mass action is:

67 / 68

The reaction in which products do not recombine to form reactants are called:

68 / 68

The new substances that arc formed in a chemical reaction arc:

Your score is

The average score is 29%

0%



Dear Student If you feel any error in any MCQ then contact us on this Email : 786times.com@gmail.com (administrator) OR Write in Comments….

Features:

  • Simple and easiest way to display MCQs.
  •  On refresh website page,each question and Answer shuffle in MCQs.
  • Time Limit is display for each test.
  • No login and password required for test.
  • Each query entertained online via email or WhatsApp.
  • Score card Display.
  • Correct answer display at end of each question(if you wrong answered).
  • Complete list of Question numbers in cells(blocks) e.g. 1, 2 , 3 ….
  • Red cells show your wrong answers.
  • Green cells shows correct Answers.
  • Your obtained RESULT Percentage show after each Questions.
  • Use your computer LAB & Internet to increase ability of STUDENTS.
  • Mobile Friendly

Choose Another Chapter | Previous Chapter | Next Chapter

Respected Visitors:
Feel free to Contact us for Comments & Suggestions  or send us any NEWS or Notification about School Education Department Punjab via using Google Gmail Services on following ID.
786Times.com@gmail.com
Or Send us your comments via using Whatsapp web Services.
We also available on Social Media
at facebook( fb )
https://facebook.com/786Timespk
https://facebook.com/786Timesnews
Also available on
Twitter ID:
https://twitter.com/786times