NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 720  727 of 2000
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Question number: 720
» Mathematics » Number Systems
Question
This property is
Choices
Choice (4)  Response  

a.  Closure 

b.  Associative 

c.  Identity 

d.  Commutative 

Question number: 721
» Mathematics » Number Systems
Question
How many pieces of equal size can be cut from a rope of 60 meters long, each measuring meters?
Choices
Choice (4)  Response  

a.  16 

b.  13 

c.  4 

d.  8 

Question number: 722
» Chemistry » The Nature of Matter
Question
Which kind of colloidal system a gel is:
Choices
Choice (4)  Response  

a.  Gas dispersed in solid 

b.  Liquid dispersed in gas 

c.  Liquid dispersed in solid 

d.  Solid dispersed in gas 

Question number: 723
» Mathematics » Surface Areas & Volumes
Question
A hemispherical bowl is made of steel of 0.5 cm thickness. The inner radius of the bowl is 18 cm. The volume of steel used is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 724
» Mathematics » Number Systems
Question
The product of a rational number and its reciprocal is
Choices
Choice (4)  Response  

a.  0 

b.  1 

c.  1 

d.  All of the above 

Question number: 725
» Mathematics » Linear Equations in Two Variables
Question
The equation of xaxis is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 726
» Biology » Fundamentals Unit of Life
Question
Histone is
Choices
Choice (4)  Response  

a.  Basic protein 

b.  Neutral Protein 

c.  Acidic protein 

d.  Amphoteric protein 

Question number: 727
» Mathematics » Circles
Question
A chord of a circle is 12 cm in length and its distance from the center is 8 cm. Find the length of the chord of the same circle which is at a distance of 6 cm from the center.
Choices
Choice (4)  Response  

a.  16 cm 

b.  24 cm 

c.  18 cm 

d.  30 cm 
