There are 200 individuals with a skin disorder ,120 had been exposed to the chemical `C_1`, 50 to chemical `C_2` and 30 to both the chemicals `C_1` and `C_2` . Find the number of individuals exposed to
Chemical `C_1` or chemical `C_2` .

There are 200 individuals with a skin disorder ,120 had been exposed to the chemical C_1 , 50 to chemical C_2 and 30 to both the chemicals C_1 and C_2 . Find the number of individuals exposed to Chemicals C_1 but not chemical C_2 .

There are 200 individuals with a skin disorder ,120 had been exposed to the chemical C_1 , 50 to chemical C_2 and 30 to both the chemicals C_1 and C_2 . Find the number of individuals exposed to Chemical C_2 but not chemical C_1 .

There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C_(1), 50 to chemical C_(2) , and 30 to both the chemicals C_(1) and C_(2) . Find the number of individuals exposed to (i) Chemical C_(1) but not chemical C_(2) (ii) Chemical C_(2) but not chemical C_(1) (iii) Chemical C_(1) or chemical C_(2)

Find the sum 3 C_1 + 5C_2

Find the value of 4C_1 - 2C_2

What is the chemical name of vitamin-C ?

This is the chemical formula C_(40)H_(56)O_(2) of

Identify but-1-yne and but-2-yne by one chemical reaction .

Transverse common tangents are drawn from O to the two circles C_1,C_2 with 4, 2 respectively. Then the ratio of the areas of triangles formed by the tangents drawn from O to the circles C_1 and C_2 and chord of contacts of O w.r.t the circles C_1 and C_2 respectively is

For a chemical reaction, K_c>1 . Will the value of /_\G^0 for this reaction be negative or positive ?