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Mdcat-past-papers - UHS - Chemistry Quiz

Filters: Board: UHS | Subject: Chemistry |
181. What is the measure of activation energy in an endothermic reaction?



182. Which of the following is correct Arrhenius Equation?



183. The catalysis in which the catalyst and the reactants are in the same phase is known as:



184. Which remains same along a period?



185. More the ionization energy of an element?



186. Along a period, atomic radius decreases. This gradual decrease in radius is due to:



187. Arrange the following elements according to the trend of ionization energy (C, N, Ne, B).



188. Which one of the following will have the smallest radius?



189. Keeping in view the size of atoms, which order is correct?



190. The ionic radius of fluoride ion is:



191. Ionization energy decreases down the group from top to bottom due to:



192. Modern periodic table is arranged in ascending order of:



193. In the second period of elements, although oxygen lies next to nitrogen yet its first ionization energy is lower than that of nitrogen because:



194. Which of the following elements has the smallest size?



195. Which of the following has the highest atomic radius in its period?



196. In metals, why does electric conductivity decrease with the increase of temperature?



197. Which oxyacid of halogen is a strong oxidizing agent?



198. What is the proton (atomic number) of an element that has four unpaired electrons in its ground state?



199. Which of the following has the smallest atomic radius?



200. The difference of lithium from the other alkali metals is mainly because of:



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