Online NAT IM Pre Medical Chemistry Test Preparation for Pakistani Students

NAT I Medical Chemistry

Sr. #	Questions	Answers Choice
1	The wire in the flash bulbs is made up of	Mg Ba Cu Ag
2	Portland cement is manufactured by using	Limestone,clay and sand Limestone,gypsum and sand Limestone,gypsum and alumina Limestone,clay and gypsum
3	Magnesium keeps on burning in	N<sub>2</sub> CO<sub>2</sub> N<sub>2</sub>O N<sub>2</sub> as well as CO<sub>2</sub>
4	Calcium cyanamide on treatment with steam under pressure gives NH₃ and	<span style="font-size: 14.44444465637207px;">Calcium carbonate</span> <span style="font-size: 14.44444465637207px;">Calcium hydroxide</span> <span style="font-size: 14.44444465637207px;">Calcium oxide</span> <span style="font-size: 14.44444465637207px;">Calcium bicarbonate</span>
5	The formula of calcium cyanamide is	Ca(CN)<sub>2</sub> CaC<sub>2</sub>N CaNCN CaCHNH<sub>2</sub>
6	Setting of plaster of paris involves	Oxidation with atmospheric oxygen Combination with atmosphere CO<sub>2</sub> Dehydration Hydration to yield another hydrate.
7	Setting of cement is an	Exothermic reaction Endothermic reaction Neither exothermic nor endothermic None
8	Which of the following compounds has the lowest anion to cation size ratio?	LiF NaF CsI CsF