NSO Level 1 Science Olympiad (SOF) Class 10: Questions 136  140 of 986
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Question number: 136
» Chemical Reactions and Equation
Question
Which of the following is incorrect for the ionic compounds?
Choices
Choice (4)  Response  

a.  Its reduced cation and anion in its aqueous solution 

b.  The compound formed is solid. 

c.  It’s soluble in water. 

d.  Its insoluble in water 

Question number: 137
Question
The difference between an exterior angle of sided regular polygon and an exterior angle of sided regular polygon is, then the value of is ________.
Choices
Choice (4)  Response  

a.  12 

b.  15 

c.  14 

d.  13 

Question number: 138
Question
Figure (X) is followed by four figures (A), (B), (C) and (D) such that (X) is embedded in one of them. Trace out of the correct alternative.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 139
Question
In a group of cows and hens, the number of legs is 24 more than twice the number of heads. What is the number of cows in the group?
Choices
Choice (4)  Response  

a.  15 

b.  18 

c.  12 

d.  10 

Question number: 140
Question
Moistened ammonia was placed on strip of paper. The color of the strip.
Choices
Choice (4)  Response  

a.  Did not change 

b.  Turned green 

c.  Turned blue 

d.  Turned light pink 
