Catalyst
Catalyst is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2016, 2024). Below are those real questions with their correct answers and explanations.
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Real questions that test this
जस जशी रासायनिक अभिक्रिया होत रहाते वेळेनुसार तिचा वेग _________ With the progress of any chemical reaction, the rate of the chemical reaction _________ with time.
The rate of a chemical reaction generally decreases with time as the concentration of reactants decreases and gets converted into products.
खालील विधाने विचारत घ्या. रासायनिक अभिक्रियेचा दर हा ______ वरीलपैकी कोणते विधान/विधाने बरोबर आहेत ? / Consider the following statements : Rate of a chemical reaction is _______ Which of the statement given above is/are correct ?
(a)अभिक्रियाकारकांच्या संहतीच्या प्रमाणात बदलतो. / proportional to the concentration of reactants.
(b)अभिक्रियाकारकांची संहती वाढविली की, कमी होतो. / decreases on increasing the concentration of reactants.
(c)तापमान वाढविले की, वाढतो. / increases on increasing the temperature.
(d)तापमान वाढविले की, कमी होतो. / decreases on increasing the temperature.
The rate of a chemical reaction is directly proportional to the concentration of reactants (higher concentration means more collisions) and increases with an increase in temperature (higher kinetic energy).