NDA CHEMISTRY QUIZ - 2

Attempt now to get your rank among 20 students!

Question 1:

DIRECTIONS: Read the following two statements and choose the correct answer. 

Statement 1 – Two or more pure substances mix together in any ratio to form compounds 

Statement 2 –  Compounds cannot be separated into its constituents by physical method .

Question 2:

Match List I with List II

List I

List II

1. Amalgam 

A: Heterogeneous mixture 

2. Heterogeneous mixture

B: Homogeneous mixture 

3. Human body

C: Air

4. Homogeneous mixture 

D: Soft Drinks (Carbon dioxide in drinks)

Question 3:

DIRECTIONS: Read the following two statements and choose the correct answer. 

Statement 1 – All pure substances are compounds.

Statement 2 – Pure substances have fixed boiling and melting points.

Question 4:

A student is given a mixture of iron filings and sulphur in the ratio 1 : 2 by weight. He was then asked to heat the mixture over a flame . Student observe the 

Question 5:

Kerosene Oil and water is an example of-

Question 6:

DIRECTIONS: Read the following two statements and choose the correct answer. 

Statement 1 – Brass is an alloy 

Statement 2 – Brass react with dilute sulphuric acid and get corroded in rainy season.

Question 7:

DIRECTIONS: Read the following two statements and choose the correct answer. 

Statement 1 – Metalloids have property between metal and non metal.

Statement 2 – Metalloids can form alloys .

Question 8:

When iron filings and powdered sulphur are mixed together in a china dish

Question 9:

Which of the following mixture is(are) called solution?

(i) water + alcohol

(ii) water + carbon tetrachloride

(iii) acetone + alcohol 

(iv) hexane + water

Question 10:

Three students A, B and C prepared mixtures using chalk powder, common salt and starch respectively in water. Match Column 1 and Column 2 . 

Column -1

Column -2

i. A Solution

1. Homogeneous mixture

ii. B Solution

2. Would settle down at the bottom when left undisturbed.

iii. C Solution 

3. They cannot be separated from the mixture by the process of filtration. But, a special technique of separation known as centrifugation can be used