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#Question id: 19570


The basic structural unit of silicates is:

#XL - P Chemistry
  1. SiO42-
  2. SiO–
  3. SiO44-
  4. SO32-

Answer:- Option(s): 3


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#Question id: 11151

#XL - S Microbiology

What conclusion can be drawn validly from these data?

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#Question id: 19675

#XL - P Chemistry

What is the correct name for a molecule that has two amino groups in opposing (para) locations around a benzene ring?

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#Question id: 5383

#XL - P Chemistry

12 yr ago the average age of a husband and a wife was 20 yr .The average remains the same today when they have two children. What is the present age of the youngest child if they differ in age by 2 yr.

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#Question id: 18528

#XL - R Botany

Rauwolfia serpentina which belongs to apocyanaceae yield medicine of 

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#Question id: 8919

#XL - R Botany

The last common ancestor of all animals was probably a

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