Which of the statements about the reaction below are incorrect?

-

Ques 1: Which of the statements about the reaction below are incorrect?  

           2 P b O + C → 2 P b + CO

(a) Lead is getting reduced.

(b) Carbon dioxide is getting oxidised.

(c) Carbon is getting oxidised.

(d) Lead oxide is getting reduced.

(i) (a) and (b)

(i i) (a) and (c)

(i i i) (a), (b) and (c)

(i v) all

Ans 1: (i) (a) and (b)

                                                      

                                                 

Comments

Post a Comment

Popular posts from this blog

Changing Trends And Career in Physical Education Solutions || Objective Type Questions || Objective Answers Chapter 1 Class 11 Solution || Physical Education ||

-
Ques 1: “Physical Eduction is the sum of changes in an individual caused by experience centring motor activity” Who said this? (a) Prince martin  (b) Millions (c) Charls A.Butchar  (d) Cassidy Ans :  (d) Cassidy Ques 2: “Physical Education is the sum of men’s physical activities selected as to kind and conducted as to outcomes” who said this? (a) C.C.Covel  (b) Charls A Butcha (c) Williams  (d) J.B. Nash Ans :  (c) Williams Ques 3 : How many objectives of physical Education are there? (a) Four  (b) Five (c) Three  (d) Six Ans : (b) Five Ques 4 : What is the aim of physical Education? (a) Physical development  (b) Motor development (c) Mental Development  (d) All Round development Ans : (d) All Round development Ques 5: Sports management is based upon....? (a) Efficient and Talented officials  (b) Smart and clever officials (c) Weak and Greedy officials  (d) None of these  Ans : (a) Efficient and Talented of...
Read more

Vistas Chapter-2 The Tiger King || Revision Notes Class 12 Board Exams

-
                                            Vistas                                           Chapter -2                                      The Tiger King   “The Tiger King” is a story of an arrogant King who disproved the prophecy of the astrologer, but destiny proved to be powerful and the prediction which was made when the king was ten days old comes out to be true. The Maharaja Sir Jilani Jung Jung Bahadur was called “Tiger King”. When he was just 10 days old he asked intelligent questions to the astrologers and was told that he would be killed by a tiger. He uttered “Let tigers beware!” No other miracle took place, the child grew like any other Royal child drinking whit...
Read more

Kinematics Important Questions Of Physics

-
Ques 1. Mention the condition when an object is in motion (a) can be considered point object (b) can not be considered point object.  Ans . An object can be considered as a point object if (a) its size is negligible in comparison to the distance travelled by object (b) it's size is not negligible in comparison to the distance travelled by object. Ques 2 . Can Earth be regarded as a point object when it is describing its really journey around the sun? Ans.  Yes, because the diameter of earth is very small as compared to the radius of the orbital path of earth around the sun.   Ques 3. Can the speed of a body be negative?   Ans . No, because the speed of an object is the distance travelled by the by object in unit time and distance can never be negative. Ques 4. which speed is measured by the speedometer of your scooter?  Ans . The Speedometer measure the instantaneous speed of the scooter at a given instant of time. Ques 5.What does th...
Read more

Three oxides of lead on analysis were found to contain lead as under:(i) 3.45 g of yellow oxide contains 3.21 g of lead. (ii) 1.195 g of brown oxide contains 1.035 g of lead. (iii) 1.77 g of red oxide contains 1.61 g of lead. Show that these data illustrate law of multiple proportions.

-
Ques : Three oxides of lead on analysis were found to contain lead as under: (i) 3.45 g of yellow oxide contains 3.21 g of lead. (ii) 1.195 g of brown oxide contains 1.035 g of lead. (iii) 1.77 g of red oxide contains 1.61 g of lead. Show that these data illustrate law of multiple proportions. Ans : The amounts of lead and oxygen in three oxides are : (i) Yellow oxide : Mass of lead = 3.21 g Mass of oxygen = 3.45 - 3.21                              = 0.24 g  (ii) Brown oxide : Mass of lead = 1.035 g                             Mass of oxygen = 1.195 - 1.035                                                          = 0.160 g (iii) Red oxide: Mass of lead = 1.61 g         ...
Read more

Test and Measurement in Sports Case Study Based Questions Chapter 6 Class 12 Physical education

-
 1. Mr. Lakshman, aged 65 years worked as a civil engineer in a construction company. He had to walk and climb a lot as part of his job. After retirement, he settled with his son spending time with his grandchildren. Now a days he is experiencing difficulty in doing certain chores which involves physical movement.  (i) Which of the following tests would you recommend to check Mr. Lakshman’s fitness? (a) Harvard step test  (b) Rikli & Jones test (c) AAHPER test (d) Rock port test (ii) How many series of tests are there in the prescribed fitness test for Mr. Lakshman? (a) 8  (b) 6 (c) 5  (d) 4 (iii) Chair sit & reach test is done to check ____________ (a) Agility (b) Speed (c) Flexibility (d) Strength (iv) Pick the odd one out. (a) Arm curl test (b) Chair stand test (c) 6 min walk test (d) Partial curl up (v) The 8 foot up &go test, as shown in the picture is performed to assess _________ (a) Agility (b) Endurance (c) Speed (d) Strength 2. (i) Both the...
Read more