Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From brown to blue-black From brown to orange-red From pink to blue-green From blue to pink From brown to blue-black From brown to orange-red From pink to blue-green From blue to pink ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nylon is a type of Polyolefin Polyester Polyamide Acrylic Polyolefin Polyester Polyamide Acrylic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Phosphorus-31 Tritium Carbon-14 Radium Phosphorus-31 Tritium Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Benzene cannot undergo : Oxidation Addition Substitution Elimination Oxidation Addition Substitution Elimination ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are made from Sodium salt of benzene sulphonic acid Sodium salt of benzene carboxylic acid Sodium stearate Sodium palmitate Sodium salt of benzene sulphonic acid Sodium salt of benzene carboxylic acid Sodium stearate Sodium palmitate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of hydrogen bonds between guanine and cytosine in DNA is 2 4 1 3 2 4 1 3 ANSWER DOWNLOAD EXAMIANS APP
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