31Question
Pick the crystalline solid:
43 Chemistry questions from the UHS MDCAT 2025 Past Paper (Paper ID-D). Answers follow the key printed in the source PDF.
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Pick the crystalline solid:
Shape of orbital is determined by quantum number:
A chemical reaction has a theoretical yield of 25 g, but only 20 g of product was obtained. What is the percentage yield of the reaction?
Which of the following best explains why phenol reacts with aqueous NaOH, but alcohols do not?
Which of the following situations most clearly demonstrates a key characteristic of a redox reaction?
Terminal alkynes show acidic character due to:
Which of the following is true about pressure for an ideal gas at -273°C?
Molecules having one lone pair and three bond pairs have geometrical shape
Consider the given balanced chemical equation: 2H₂ + O₂ → 2H₂O. If 4 g of H₂ reacts with 32 g of O₂ to produce 28 g of H₂O, what is the percentage yield of the reaction? (Molar mass of H₂ = 2 g/mol, O₂ = 32 g/mol and H₂O = 18 g/mol)
Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces