Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Oxygen Argon Krypton Nitrogen Oxygen Argon Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Tin Aluminium Copper Iron Tin Aluminium Copper Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Entropy of Universe is always Increasing Decreasing Constant Zero Increasing Decreasing Constant Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Electrons Positrons Neutrons Protons Electrons Positrons Neutrons Protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the strongest base in aqueous solution ? Ammonia Diethylamine Triethylamine Ethylamine Ammonia Diethylamine Triethylamine Ethylamine ANSWER DOWNLOAD EXAMIANS APP
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