SOME BASIC CONCEPTS OF CHEMISTRY Quiz-3

 

SOME BASIC CONCEPTS OF CHEMISTRY Quiz-3

Dear Readers,

IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything..

Q1.

 :

•  NaOH
•  

  
  

•  Both (a) and (b)
•  None of these

Solution
option b

Q2.

•  0.002
•  0.003
•  0.005
•  0.001

Solution

 

Q3.When 10 mL of ethyl alcohol (density = 0.7893 g mL^(-1)) is mixed with 20 mL of water (density 0.9971 g mL^(-1)) at 25C, the final solution has a density of 0.9571 g mL^(-1). The percentage change in total volume on mixing is  

•  3.1%
•  2.4%
•  1%
•  None of these

Solution

Q4.Which has maximum number of millimoles of Cl^- ion?  

•  

   0.208 g BaCl_2

•  100 mL of 0.1 M BaCl_2
•  0.745 g KCl
•  Equal

Solution

Q5.For H₃ PO₃, the correct choice is

•  H₃PO₃ is dibasic and reducing/span>
•   H₃ PO₃ is dibasic and non-reducing
•  H₃ PO₃ is tribasic and reducing
•  H₃ PO₃ is tribasic and non-reducing

Solution
 

Q6.

 

•  2/11
•  11/2
• 5/2
•  7/2

Solution

Q7.

•  1
•  2
•  3
•  4

Solution

Q8.0.05 g of a piece of metal in dilute acid gave 24.62 mL of H_2 at 27℃ and 760 mm pressure. The Ew of metal is

•  25
•  12.5
•  50
•  37.5

Solution

 

Q9.

 

•  4.5
•  2.5
•  1.25
•  none

Solution

Q10.

 

•  

  
  

•  

  
  

•  

  
  

• 
  

Solution