50
119. Rain forests are home to 90,000 of the 2,50,000 identified plant species in the world. What per cent of the world’s identified plant species are found in rain forests?
03
Aug
119. Rain forests are home to 90,000 of the 2,50,000 identified plant species in the world. What per cent of the world’s identified plant species are found in rain forests? 000 identified plant species in the world. What per cent of the world’s identified plant species are found in rain forests? 000 of the 2 [...]
20. Radhika bought a car for Rs 2,50,000. Next year its price decreased by 10% and further next year it decreased by 12%. In the two years overall decrease per cent in the price of the car is
03
Aug
20. Radhika bought a car for Rs 2,50,000. Next year its price decreased by 10% and further next year it decreased by 12%. In the two years overall decrease per cent in the price of the car is 000. Next year its price decreased by 10% and further next year it decreased by 12%. In [...]
55. The standard form for 32,50,00,00,000 is __________.
29
Jul
55. The standard form for 32,50,00,00,000 is __________. 00 000 is __________. 50 55. The standard form for 32 July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
A reaction takes place in various steps. The rate constant for first, second, third and fifth steps are k1,k2,k3 and k5 respectively The overall rate constant is given by k=k2/k3(k1/k5)1/2 If activation energy are 40, 60, 50, and 10 kJ/mol respectively, the overall energy of activation (kJ/mol) is :
03
Jun
A reaction takes place in various steps. The rate constant for first, second, third and fifth steps are k1,k2,k3 and k5 respectively The overall rate constant is given by k=k2/k3(k1/k5)1/2 If activation energy are 40, 60, 50, and 10 kJ/mol respectively, the overall energy of activation (kJ/mol) is : 50 60 A reaction takes place [...]
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Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2)
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N Awasthi Physical Chemistry
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50 ,
60 ,
A reaction takes place in various steps. The rate constant for first ,
and 10 kJ/mol respectively ,
k2 ,
k3 and k5 respectively The overall rate constant is given by k=k2/k3(k1/k5)1/2 If activation energy are 40 ,
second ,
the overall energy of activation (kJ/mol) is : ,
third and fifth steps are k1 ,
It has been found that nuclides with 2,8, 20, 50, 82, and 126 protons or neutrons are exceptionally stable. These numbers are referred to as the magic numbers and their existence has led us to
18
Oct
It has been found that nuclides with 2,8, 20, 50, 82, and 126 protons or neutrons are exceptionally stable. These numbers are referred to as the magic numbers and their existence has led us to 20 50 8 82 and 126 protons or neutrons are exceptionally stable. These numbers are referred to as the magic [...]
3. The following observations have been arranged in ascending order. If the median of the data is 63, find the value of x. 29, 32, 48, 50, x, x+2, 72, 78, 84, 95
17
Oct
3. The following observations have been arranged in ascending order. If the median of the data is 63, find the value of x. 29, 32, 48, 50, x, x+2, 72, 78, 84, 95 3^2 3. The following observations have been arranged in ascending order. If the median of the data is 63 48 50 7^2 [...]
4.Arun bought a car for Rs. 3,50,000. The next year, the price went up to Rs. 3,70,000. What was the percentage of price increase?
08
Oct
4.Arun bought a car for Rs. 3,50,000. The next year, the price went up to Rs. 3,70,000. What was the percentage of price increase? 000. The next year 000. What was the percentage of price increase? 4.Arun bought a car for Rs. 3 50 70 the price went up to Rs. 3 October 8, 2020 [...]
The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 (i) Find the mode and median of this data. (ii) Is there more than one mode?
07
Oct
The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 (i) Find the mode and median of this data. (ii) Is there more than one mode? -45 3^2 35° 36 37 38 40 42 43 47 (i) Find the [...]
The runs scored in a cricket match by 11 players is as follows: 6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15 Find the mean, mode and median of this data. Are the three same?
07
Oct
The runs scored in a cricket match by 11 players is as follows: 6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15 Find the mean, mode and median of this data. Are the three same? 10 100 120 15 15 Find the mean 50 8 80 mode and median of this data. Are [...]