NDA CHEMISTRY QUIZ

Question 1:

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

Statement -1 o-Nitrophenol and p-Nitrophenol can be separated by steam distillation .

Statement -2 o-Nitrophenol is a steam non -volatile compound and p-nitrophenol is a steam volatile compound .

Statement 1 is incorrect but 2 is correct

Statement 2 is incorrect but 1 is correct

Both statements are correct and statement 2 is the correct explanation of statement 1

Both statements are incorrect

Question 2:

Which of the following separation method is used in diagnostic laboratories for blood and urine tests?

Centrifugation

Separating Funnel

Evaporation

Distillation

Question 3:

Vacuum distillation is used to separate substances

Decomposes below their boiling point .

Decomposes at the boiling point

Decomposes above their boiling point

Decompose below their melting point .

Question 4:

Which of the following method is used to obtain pure Hydrogen Peroxide ?

Steam distillation

Vacuum Distillation

Distillation

Fractional Distillation

Question 5:

Which of the following statement is true ?

Distilled water is obtained from tap water by Fractional distillation

Distilled water is obtained from tap water by Distillation

Distilled water is obtained from tap water by sedimentation

Distilled water is obtained from tap water by Evaporation

Question 6:

Fuel used in heavy motor vehicles, electric generators are separated from crude oil by-

Distillation

Fractional distillation

Evaporation

Centrifugation

Question 7:

Which of the following method is used for the separation of alum crystals from impure samples ?

Crystallization

Centrifugation

Evaporation

Chromatography

Question 8:

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

Statement -1 Atmolysis is used for the separation of isotopes .

Statement -1 Atmolysis is based on the same rate of diffusion.

Statement 1 is incorrect but 2 is correct

Statement 2 is incorrect but 1 is correct

Both statements are correct

Both statements are incorrect

Question 9:

Match List I with List II

List I	List II
1. Separating camphor from mixture	A: Steam distillation
2. Purification of turpentine oil	B: Evaporation
3. Separating Drugs from blood	C: Sublimation
4. Separating coloured component from the ink	D: Chromatography

1-C , 2-A, 3-D , 4-B

1-B,2-C,3-D,4-A

1-C , 2-D, 3-A , 4-B

1-D,2-C,3-B,4-A

Question 10:

Which of the following option is correct for the separation of components from the mixture of Salt, ammonium chloride, and water?

Sublimation and Evaporation

Crystallization and Evaporation

Centrifugation and Evaporation

Distillation and sublimation

सूची I	सूची II
1. कपूर को मिश्रण से अलग करना	ए: भाप आसवन
2. तारपीन के तेल की शुद्धि	बी: वाष्पीकरण
3. दवाओं को रक्त से अलग करना	सी: उच्च बनाने की क्रिया
4. रंगीन घटक को स्याही से अलग करना	डी: क्रोमैटोग्राफ

NDA CHEMISTRY QUIZ - 4

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NDA CHEMISTRY QUIZ - 4

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