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Q. What is chlorophyll?
A magnesium complex of porphyrin is called chlotophyll. the green colouring material in plants and which is essential for photosynthesis.
Hemoglobin, plays the role of oxygen carrier in mammalian blood. In hemoglobin Fe2+ ion is not only surrounded by four nitrogens of porphyrin but the fifth position is occupied by nitrogen of the protein as shown in Fig.
Credit Cards Credit cards are offered by banks, as well as other institutions such as credit unions. There are numerous credit cards currently available in the market, each wi
Three-center bonding Example of where the 2c bonding picture is not present is in diborane B2H6. The terminal B-H bonds can be defined in simple 2c terms, but the number of
how to draw 3D stereoisomers for a compound?
what is the formula of alcoholic acidity?
Q. What are Independent and dependent variables? An experiment is a set of controlled explanation that tests a hypothesis. In a research a scientist will set up and change on
Acetic Acid or Ethanoic Acid Acetic acid is the oldest termed as fatty acid. It is the major constituent of vinegar and therefore its name (Latin acetum = vinegar)
How can you identify the phenolic-OH gr. of an organic compound which also contain an electron withdrawing group?
two containers are connected by a stopcock. gas A is at pressure 202kpa while gas B is at pressure 140kpa, what will be the resultant pressure when the stopcock is opened
mechanism of picricacids
Which of the following has more unpaired d-electrons: (1) Zn + (2) Fe 2+ (3) N 3+ (4) Cu + An
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