NTPC CBT-2 Chemistry Quiz - 71

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Question 1:

Which among the following are Dibasic Acids? 

Question 2:

Which one of the following metals produces hydrogen with cold water ? 

Question 3:

A salt X when dissolved in distilled water turns blue litmus to red . Salt X is 

Question 4:

Alpha decay of radium to radon always follow 

Question 5:

Which one among the following is an acidic oxide?

Question 6:

In terms of acidic strength , which of the following is correctly represent ?

Question 7:

Which one of the following statements is correct about the trends in the properties of the elements of a period on going from left to right?

Question 8:

Sodium metal should be stored in 

Question 9:

Size of nucleus is very small as compared to the size of an atom is concluded by which of the following observations?

Question 10:

Which one of the following reaction does not result in the evolution of Hydrogen gas  ?