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)
Explanation: CHOROID: The vascular layer between the sclera and the retina; the blood vessels in the choroid help provide oxygen and nutrients to the eye.
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
Explanation: To find the value of y, we can equate the corresponding components of the given equation:
2x = 6 x + y = 2
From the first equation, we can solve for x:
2x = 6 x = 3
Substituting this value of x into the second equation, we can solve for y:
3 + y = 2 y = 2 - 3 y = -1
Therefore, the value of y is A) -1.
The scientific notation for 0.0001 is 1 × 10-4.
What is the exponent?
a) 1
b) 10
c) -4
d) 0
