Chemistry-
General
Easy

Question

In zone - refining method the molten zone

  1. consists of impurities only    
  2. contains more impurity than the original metal    
  3. contains the purified metal only    
  4. moves to either side    

The correct answer is: contains more impurity than the original metal

Related Questions to study

General
Chemistry-

Ag2S + NaCN + Zn ⟶ Ag This method of extraction of Ag by complex formation and then its displacement is called

Ag2S + NaCN + Zn ⟶ Ag This method of extraction of Ag by complex formation and then its displacement is called

Chemistry-General
General
Chemistry-

On igniting Fe2O3 at 1400°C, the product obtained is:

On igniting Fe2O3 at 1400°C, the product obtained is:

Chemistry-General
General
Chemistry-

AgCl on fusion with Na2CO3 form

AgCl on fusion with Na2CO3 form

Chemistry-General
parallel
General
Chemistry-

As the reaction is increased from T1 to T2

As the reaction is increased from T1 to T2

Chemistry-General
General
Chemistry-

The conjugate base of H3+O is

The conjugate base of H3+O is

Chemistry-General
General
Chemistry-

1 cc of 0.1M HCl is added to 999 cc solution of 0.1M NaCl. The pH of the resulting solution will be

1 cc of 0.1M HCl is added to 999 cc solution of 0.1M NaCl. The pH of the resulting solution will be

Chemistry-General
parallel
General
Chemistry-

The hydrogen ion concentration of 0.2N CH3COOH which is 40% dissociated is

The hydrogen ion concentration of 0.2N CH3COOH which is 40% dissociated is

Chemistry-General
General
Chemistry-

A gaseous reaction A2(g) ¾¾→ B(g) + fraction numerator 1 over denominator 2 end fractionC(g) Shows increase in pressure from 100mm to 120 mm in 5 minutes. The rate of disappearance of A2 is

A gaseous reaction A2(g) ¾¾→ B(g) + fraction numerator 1 over denominator 2 end fractionC(g) Shows increase in pressure from 100mm to 120 mm in 5 minutes. The rate of disappearance of A2 is

Chemistry-General
General
Chemistry-

For a chemical reaction 2X + Y ⟶Z, the rate of appearance of Z is 0.05 mol L–1 per min. The rate of disappearance of X will be

For a chemical reaction 2X + Y ⟶Z, the rate of appearance of Z is 0.05 mol L–1 per min. The rate of disappearance of X will be

Chemistry-General
parallel
General
Chemistry-

An ideal gas expands according to PV = constant. On expansion, the temperature of gas

An ideal gas expands according to PV = constant. On expansion, the temperature of gas

Chemistry-General
General
Chemistry-

The highest excited state that unexcited hydrogen atoms can reach when they are bombarded with 12.2 eV photon is

The highest excited state that unexcited hydrogen atoms can reach when they are bombarded with 12.2 eV photon is

Chemistry-General
General
Chemistry-

The product of the following reaction is 

The product of the following reaction is 

Chemistry-General
parallel
General
Chemistry-

Identify (Y) in the following reaction sequence
C6H5 – CH = CH2 Error converting from MathML to accessible text. (X) Error converting from MathML to accessible text. [Y]

Identify (Y) in the following reaction sequence
C6H5 – CH = CH2 Error converting from MathML to accessible text. (X) Error converting from MathML to accessible text. [Y]

Chemistry-General
General
Chemistry-

298  Identify B

298  Identify B

Chemistry-General
General
Chemistry-

Chemistry-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.