Question
In the synthesis of aspirin (acetylsalicylic acid) from
salicylic acid, which reagent is used?Solution
Aspirin is synthesized by reacting salicylic acid with acetic anhydride in the presence of a catalyst (such as concentrated sulfuric acid). Acetyl chloride could theoretically work but is less commonly used due to its reactivity and cost.In the synthesis of aspirin (acetylsalicylic acid) from salicylic acid, which reagent is used?
If A and B are complementary angles, then the value of-
sin A cos B + cos A sin B – tan A tan B + sec 2
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?Â
1. q3 – 2p + ...
What is the value of sin(B – C) cos(A – D) + sin(A – B) cos(C – D) + sin(C – A) cos(B – D)?
Find the value of the given trigonometric expression:
(sin 22°cos 68° + cos²22°) × sin 30° + (cos 60°tan 45°) × sec 60°
...If tanθ – cotθ = a and cosθ + sinθ = b, then (b2 –1)(a2 + 4) = ?
If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan30 θ + cot 29 θ.
What is the simplified value of the given expression?
2(sin² 15° + sin² 75°) + 4sin 30° - (2sec 60° + cot 45°)
which of the following is equal to [(tan θ +secθ -1)/ (tanθ-secθ +1)] Â
[(sinx – 2sin 3 x)/(2cos 3 x – cosx)] 2  + 1, x ≠45 o , is equal to:
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