Which element can form tripositive ion ?
Which element can form tripositive ion ?
A. Beryllium
B. Carbon
C. Silicon
D. Aluminium
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Carbon in wrought iron is present as_________?
Carbon in wrought iron is present as_________?A. Silicon carbide
B. Iron carbide
C. Graphite
D. Partly as iron carbide and partly as graphiteWhich statement is incorrect about catalyst___________________?
Which statement is incorrect about catalyst___________________?A. it is used in smaller amount
B. decrease activation energy
C. specific in action
D. it affects specific rate constantThe formula of palmitic acid_________________?
The formula of palmitic acid_________________?A. C15H31COOH
B. C13H27COOH
C. C17H33COOH
D. C17H35COOHWhich molecule has the highest bond energy among the halogens_________________?
Which molecule has the highest bond energy among the halogens_________________?A. Fluorine
B. Chlorine
C. Iodine
D. BromineWhich of the following reagents will react with both aldehydes and ketones ?
Which of the following reagents will react with both aldehydes and ketones ?A. Grignard reagent
B. Tollens reagent
C. Fehlings reagent
D. Benedicts reagentWhich of the following is the Radioactive isotope of Hydrogen?
Which of the following is the Radioactive isotope of Hydrogen?A. Protium
B. Deuterium
C. Tritium
D. Nichromium