Chemistry Which of the following is a natural polymer? Bakelite Starch Nylon Polythene Bakelite Starch Nylon Polythene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Assertion (A) : Synthetic detergents can lather wen in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water. Both A and R is true and R is the correct explanation of A Both A and R is true but R is not a correct explanation of A A is false but R is true A is true but R is false Both A and R is true and R is the correct explanation of A Both A and R is true but R is not a correct explanation of A A is false but R is true A is true but R is false ANSWER DOWNLOAD EXAMIANS APP
Chemistry Curd is sour due to presenceof Tartaric acid Oxalic acid Lactic acid Acetic acid Tartaric acid Oxalic acid Lactic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Power transmittor Battery Uninterrupted power supply (UPS) Generator Power transmittor Battery Uninterrupted power supply (UPS) Generator ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other Water and petrol react chemically The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other Water and petrol react chemically The flame is too hot for water to cool it down ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in All of these Semiconductors Transistors Solar energy devices All of these Semiconductors Transistors Solar energy devices ANSWER DOWNLOAD EXAMIANS APP
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