UHS MDCAT 2026 original Chemistry paper | Chemistry UHS MDCAT 2026 MCQs solved key |

Question: Some more questions of chemistry: 9.01×10^23 particles of a gas has how many moles? Ans: 1.5 moles Question: Maximum probability of finding electrons is called: Ans: Orbital Question: Number of electrons according to Azimuthal quantum number: Answer: 2(2l+1) Question: In a cyclic process, where internal energy remains constant, a system absorbs 1200j of energy and then loses 700j of energy. Which of the following is the correct statement? A) Heat energy has increased by 500J B) Heat energy has decreased by 500J C) The system has a network of 500J D) 500J of the network is done on the system. Question: A girl dissolved large pieces of copper sulphate in water and after ten minutes she sees the particles still in water but in another beaker she dissolves the same amount of copper sulphate in powdered form that gets dissolved earlier. what is the reason of this earlier dissolving of crushed copper sulphate? Answer: Large surface area.