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NCERT CHEMISTRY MOCK TEST 4

NCERT CHEMISTRY MOCK TEST 4

NCERT CHEMISTRY MOCK TEST 4

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ABOUT THIS MOCK TEST 

🟥 TOPIC : NCERT CHEMISTRY MOCK TEST 4

🟥 NUMBER OF QUESTIONS : 25

🟥 TIME : 15 MINS

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3

NCERT CHEMISTRY MOCK TEST 4

🟥 NCERT CHEMISTRY MOCK TEST 4

🟥 QUESTIONS : 25

🟥 TIME : 15 MINS

1 / 25

1) Consider the following statements :  Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. Its function is to

1. act as the reducing agent

2. remove silica associated with the iron ore

3. function as fuel; to supply heat

4. act as an oxidizing agent Of these statements

 

 

2 / 25

2) The most reactive among the halogens is

 

3 / 25

3) Which one of the following is not an essential micronutrient for plants?

 

4 / 25

4) Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?

 

5 / 25

5) The chemical used as a ‘fixer’ in photography is

 

6 / 25

6) Which one of the following is a mixed fertilizer?

 

 

7 / 25

7) The function of heavy water in a nuclear reactor is to:

 

 

8 / 25

8) Hydrogen fuel cell vehicles produce one of the following as "exhaust"

 

9 / 25

9) In a dry cell (battery), which of the following are used as electrolytes?

 

10 / 25

10) Which one of the following statements is correct?

 

 

11 / 25

11) Regarding the atom of a chemical element, the magnetic quantum number refers to

 

12 / 25

12) With reference to ionic compounds, consider the following statements:

1. Ionic compounds are insoluble in alcohol.

2. Ionic compounds in the solid state are good conductor of electricity .

Which of these statements is/are correct?

 

 

13 / 25

13) Which one of the following is NOT radioactive?

 

 

14 / 25

14) A radioactive substance has a half-life of four months.

Three-fourth of the substance would decay in

 

15 / 25

15) In an atom, the order of filling up of the orbitals is governed by

 

16 / 25

16) Most of the explosions in mines occur due to the mixing of

 

17 / 25

17) Assertion (A) : Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluoro-carbons.

Reason (R) : Ammonia can be liquefied at ambient temperature and low pressure.

 

18 / 25

18) Cobalt-60 is commonly used in radiation therapy because it emits

 

19 / 25

19) Barium in a suitable form is administered to patients before an X-ray examination of the stomach, because

 

20 / 25

20) Which one of the following elements is essential for the construction of nuclear reactors?

 

21 / 25

21) The alpha particle carries two positive charge. Its mass is very nearly equal to that of

 

22 / 25

22) The difference between a nuclear reactor and an atomic bomb is that

 

23 / 25

23) Yellow cake’, an item of smuggling across border is

 

24 / 25

24) Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shaver etc. ?

 

 

25 / 25

25) Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not ?

 

Your score is

0%

NCERT CHEMISTRY MOCK TEST 4

 

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