Question

2. प्रतिजन की आण्विक भार कितना होता है?
What is the molecular mass of Antigen?
3. सर्वप्रथम किस कार्बनिक यौगिक का संश्लेषण प्रयोगशाला में हुआ था?
Which carbonic compound was first synthesed in laboratory
4. किसी चालक के प्रतिरोध R व लम्बाई L के मध्य ग्राफ बनाइए।​

Answer 1

Answer:

don't know bro..............

Answer 2

Answers about antigen and carbonic acid are given below-

Antigen is a molecule which elicits immune response which means antigen is a type of molecule that causes formation of antibodies or activation of T cells.

For a molecule to act as antigen, it must have weight of around 5000 to 10000 Daltons.

Carbonic compound to be first synthesized in the laboratory is Urea. It has molecular formula - CONH2CO.

It is synthesized in our body to be released as waste product. The synthesis occurs in liver.