RRB GROUP D Chemistry Quiz - 71

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Question 1:

Alkaline medium ________ rusting of iron 

Question 2:

Which process is used in hardening of leather ?

Question 3:

A brown layer formed when an iron article is left exposed in an open area is called ………………….

Question 4:

Which of the following radioisotope is used in the treatment of anemia?

Question 5:

Number of moles of carbon dioxide present in 200 ml of 0.5 molar solution is 

Question 6:

An atom of X element has 7 protons. Its mass number is 14 and has 10 electrons. Identify X

Question 7:

The substance that can catch fire rapidly have 

Question 8:

Who was the first one to propose a model for the structure of an atom?

Question 9:

Which property of iron alloy makes it suitable to used in architecture, bearings, cutlery, surgical instruments and jewellery?

Question 10:

Identify solute and solvent in ‘tincture of iodine’.