Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason).the statement carefully and mark the correct answer accoring to the instrution given below: STATEMENT - 1 : addition of ethylene glycol to water lowers the freezing point of water, therefore, used as antifreeze substance. STATEMENT - 2 : Ethylene glycol is soluble in water.
A
If both the statements are TURE and STATEMENT-2 is the correct explanation STATEMENT-1
B
If both the statements are TURE but STATEMENT-2 is NOT the correct explanation STATEMENT-1
C
If STATEMENT-1 is TURE and STATEMENT-2 is FALSE
D
If STATEMENT-1 is FA,SE and STATEMENT-2 is TRUE
Text Solution
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The correct Answer is:
B
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Assertion:Ethylene glycol is added to water and used as antifreeze in the radiators of auto-mobiles. Reason: Addition of ethylene glycol lowers the freezing point of water.
45 g of ethylene glycol (C_(2)H_(6)O_(2)) is mixed with 600 g of water. Calculate (a) the freezing point depression and (b) the freezing point of the solution.
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31 g of ethylene glycol (C_2H_6O_2) is dissolved in 600g of water. The freezing point depression of the solution is (K_f for water is 1.86 K Kg mol^-1)
Read the following two statements carefully and choose the correct option. Statement (i) : Baking soda is a mild base that is used in tooth pastes and mouth washes to neutralize acids, which can produce unpleasant odours. Statement (ii): An alkali is a water soluble acid.
In context with the industrial preparation of hydrogen from water gas (CO+H_2) , which of the following is the correct statement?
NARENDRA AWASTHI-DILUTE SOLUTION-Level 3 - Match The Column
