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Farmers have reported 50% higher yields ...

Farmers have reported 50% higher yields of Rice by using biofertilizer

A

Mycorrhiza

B

Anabaena azollae

C

Lichen

D

Legume-rhizome symbiosis

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Farmers have reported 50% higher yield of rice by using biofertilizer

Farmers have reported 50% higher yield of rice by using biofertilizer

Knowledge Check

  • Farmers have reported over 50% higher yields of rice by using which of the following biofertilisers ?

    A
    Bacillus thuringiensis
    B
    Lagume-Rhizobium symbiosis
    C
    Mycorrhizae
    D
    Azolla pinnata

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    Chlloride samples are prepared for analysis by using NaCl, KCl, NH_4Cl separately or as mixtures. What minimum volume of a 5.0% by weight AgNO_3 Solution (Density =1.02 ) must be added to a sample wehging 0.321 g in order to ensure complete precipitation of choride in every possible cases?

    Two farmers Ramkishan and Gurcharan Singh cultivates only three varieties of rice namely Basmati, Permal and Naura. The sale (in Rupees) of these varieties of rice by both the farmers in the month of September and October are given by the following matrices A and B. (i) Find the combined sales in September and October for each farmer in each variety. (ii) Find the decrease in sales from September to October. (iii) if both farmers receive 2% profit on gross sales, compute the profit for each farmer and for each variety sold in October.

    A schematic analysis of the reaction of the enantiomer with racemic mixture is shows below: {:(d,+,"d and l",rarr,(d)-(d)),("The(+)-form of",,"A racemic mixture of",,+),("chiral molecules",,"other molecules with",,(d)-(l)),(,,50%(d) and 50%(l),,):} The products (d-d) and (d-l) are clearly neither identical nor enantiomers (non-superimposable mirror images) as the diastereomers, stereoisomers that are not mirror images' . The formation of diasteromers allows the separation of enantiomers (called resolution) which is not easy as enantiomers have identical physical properties. One general with naturally occurring chiral molecule to form a pair of diastereomers. These can be separated easily as they have different physical properties. If the original chemical reaction can be reversed, the enantiomers can be isolated. Which of the following is an example of diastereomers ?

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