Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Trimethyl lead Tetramethyl lead Triethyl lead Tetraethyl lead Trimethyl lead Tetramethyl lead Triethyl lead Tetraethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Terylene is a condensation polymer of ethylene glycol and which acid? Terephthalic acid Salicylic acid Phthalic acid Benzoic Acid Terephthalic acid Salicylic acid Phthalic acid Benzoic Acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Clay and graphite Chalk and graphite Limestone and clay Limestone and graphite Clay and graphite Chalk and graphite Limestone and clay Limestone and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission? European Union, China, USA, India China, India, European Union, USA China, USA, European Union, India USA, India, China, European Union European Union, China, USA, India China, India, European Union, USA China, USA, European Union, India USA, India, China, European Union ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Red phosphorus Violet phosphorus Black phosphorus White phosphorus Red phosphorus Violet phosphorus Black phosphorus White phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Semiconductors Solar energy devices All of these Transistors Semiconductors Solar energy devices All of these Transistors ANSWER DOWNLOAD EXAMIANS APP
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