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The reaction between hydrochloric acid and sodium hydroxide to form  sodium chloride and water is:
A) Addition reaction
B) Decomposition reaction
C) Single displacement reaction
D) Double displacement reaction


The layer of the eye that is filled with blood vessels and the baring Dxygen and nutrients to the eye is:
A) Sclerotic                         
B) Choroid
C) Retina                              
D)  Both  (A) & (C)


قرآن مجید میں فتح مبین ـــــــــــــــــ کو کہا گیا ہے۔
A
)  غزوہ بدر                        
B) غزوہ تبوک
C
) فتح مکہ                          
D
) صلح حدیبیہ


Find y, if (2x, x+ y) = (6, 2).
A) -1 .                                   
B) 1
C) 3                                       
D) -3




The scientific notation for 0.0001 is 1 × 10-4. What is the exponent?
a) 1                  
b) 10    
c) -4                 
d) 0