NSO Level 1 Science Olympiad (SOF) Class 10: Questions 65  70 of 986
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Question number: 65
Question
How many squares does the given figure have?
Choices
Choice (4)  Response  

a.  18  
b.  20  
c.  22  
d.  16 
Question number: 66
Question
If , then find the value of the expression .
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 67
Question
You have two solutions, Aand B. The of the solution A is and of the solution B is 12. Which solution has more hydrogen ion concentration? Which solution has more hydrogen ion concentration?
Choices
Choice (4)  Response  

a.  is basic and has more concentration.  
b.  is basic and has more concentration.  
c.  is acidic and has more concentration.  
d.  is acidic and has more concentration. 
Question number: 68
Question
The chemical formula of the Plaster of Paris is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 69
Question
P and Q are respectively midpoints of nonparallel sides WZ and XY of a trapezium WXYZ. Then equal is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 70
Appeared in Year: 2011
Question
The middle digit of a number between 100 and 1000 is zero and the sum of the other digits is 11. If the digits be reversed, the number so formed exceeds the original number by find it.
Choices
Choice (4)  Response  

a.  403  
b.  308  
c.  803  
d.  304 