Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Triethyl lead Tetramethyl lead Trimethyl lead Tetraethyl lead Triethyl lead Tetramethyl lead Trimethyl lead Tetraethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is : K 1 = 1 /K2 K1 = 2K2 K1 = K2/2 K1 = K2 K 1 = 1 /K2 K1 = 2K2 K1 = K2/2 K1 = K2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer of atmosphere absorbs: Ultraviolet rays Cosmic rays. Infra-red rays All radiations of Light Ultraviolet rays Cosmic rays. Infra-red rays All radiations of Light ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Limestone and graphite Clay and graphite Chalk and graphite Limestone and clay Limestone and graphite Clay and graphite Chalk and graphite Limestone and clay ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aspirin is common name of Salicylic Acid Salicylate Acetyl Salicylic Acid Methyl Salicylate Salicylic Acid Salicylate Acetyl Salicylic Acid Methyl Salicylate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is nicotine aspirin caffeine chlorophyll nicotine aspirin caffeine chlorophyll ANSWER DOWNLOAD EXAMIANS APP
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