Raphides are crystals of

  • A
    Calcium carbonate
  • B
    Calcium oxalate
  • C
    Magnesium carbonate
  • D
    Magnesium oxalate

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Similar Questions

Match the following columns based on Bentham and Hooker's classification of Polypetalae:
Column-$I$Column-$II$
$A$. Thalamiflorae$i$. Gynoecium always bicarpellary
$B$. Calyciflorae$ii$. Ovary superior
$C$. Bicarpellatae$iii$. Receptacle cup-shaped
$D$. Inferae$iv$. Receptacle dome-shaped
$E$. Heteromerae$v$. Ovary inferior

The correct floral formula of soybean is

Identify the correct terms for the following analogy-based questions:
$(i)$ Sunflower : Alternate phyllotaxy :: Alstonia : ...........
$(ii)$ Datura : Actinomorphic flower :: Bean : ............

Match the following columns:
Column-$I$ (Common Name)Column-$II$ (Scientific Name)
$A$. Hibiscus$i$. Bougainvillea spectabilis
$B$. Lemon$ii$. Allium cepa
$C$. Sunflower$iii$. Hibiscus rosa-sinensis
$D$. Bougainvillea$iv$. Citrus limon
$E$. Onion$v$. Helianthus annuus
-$vi$. Rosa indica

Match List $I$ with List $II$:
List $I$List $II$
$A$. Rose$I$. Twisted aestivation
$B$. Pea$II$. Perigynous flower
$C$. Cotton$III$. Drupe
$D$. Mango$IV$. Marginal placentation

Choose the correct answer from the options given below:

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