Chemistry Poison used for killing rats is Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Zinc phosphide (Zn3P2) Magnesium phosphide (Mg3P2) Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Zinc phosphide (Zn3P2) Magnesium phosphide (Mg3P2) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The new strain of bacteria produced by biotechnology in alcohol industry is Bacillus subtilis Pseudomonas putida Saccharomyces cerevisiae Escherichia coli Bacillus subtilis Pseudomonas putida Saccharomyces cerevisiae Escherichia coli ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Rain water Sea water River water Lake water Rain water Sea water River water Lake water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement containing excess amount of lime Is quick setting Is slow setting Becomes more strong Cracks during setting Is quick setting Is slow setting Becomes more strong Cracks during setting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals can displace copper from copper sulphate solution ? Gold Platinum Iron Mercury Gold Platinum Iron Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry In arc welding, Argon is used because of its Ability to lower the melting point of the metal Low reactivity with metal High flammability High calorific value Ability to lower the melting point of the metal Low reactivity with metal High flammability High calorific value ANSWER DOWNLOAD EXAMIANS APP
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