Class 12 chemistry important conversion road map

which of the following is important for conversion of pepsinoges into pepsin? 1) F e 2 + 2) HCL 3) Bicarbonate ions 4) Enterokinase

Chemistry plays an important role in our national economy. …………….

Classify the phylum Chordata up to classes only giving important characters and examples of each group.

Class 12 ncert maths solution chapter vector algebra exercise 10.2 Qno.4,5

Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?

If in a class there are 200 students in which 120 take Mathematics, 90 take Physics, 60 take Chemistry, 50 take Mathematics & Physics, 50 take Mathematics & Chemistry, 43 take Physics & Chemistry and 38 take Mathematics Physics & Chemistry, then the number of students who hace taken exactly one subject is

In a class of 55 students the number of students studying subjects are , 23 iin Mathematics 24.in physics 19in chemisty 12 in Mathematics and physics ,9 in Mathematics and chemistry ,7 in physics and chemistry and 4 in all the three subjects. the number of students who have taken ecactly one subject is

In a class of 30 pupils, 12 Chemistry, 16 take Physics and 18 take History. If all the 30 students take at least one subject and no one take all three, then find the number of pupils taking 2 subjects.