Presence of high concentration of ozone and smog in atmospheric air causes the ________?
Correct answer
A. Cracking of rubber products
Explanation
The correct answer is Cracking of rubber products.
Correct answer
A. Cracking of rubber products
Explanation
The correct answer is Cracking of rubber products.
Consider the ‘n’ th order irreversible liquid phase reaction A → B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot?
Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the________?
A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)?
Which of the following impurities reduces the refractoriness of magnesite bricks?
Pick out the correct statement?
Which of the following may be termed as a variable orifice flow-meter?