Download App

The s-block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe s-block Elements1 Mark
MCQ
Bones and teeth contain:
  • ✓
    Calcium dihydrogen phosphate
  • B
    Apatite
  • C
    Calcium phosphide
  • D
    None of the above
✓

Answer

Correct option: A.
Calcium dihydrogen phosphate
Bones and teeth contains Apatite which is a group of phosphate minerals and contains calcium.
Its formula can be represented as $\ce{Ca_5 (PO_4 ​)_3 (F, Cl, OH).}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from The s-block Elements→The s-block Elements — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

For the process

$H _2 O (\ell) \rightarrow H _2 O ( g )$

at $T =100^{\circ} C$ and $1$ atmosphere pressure, the correct choice is :

→
Which of the following has $2-$ chiral carbon atoms
→
In which of the following ways the structure $(s)$ of organic compounds is/ are represented?
→
The incorrect stability order of $+3$ and $+1$ states of $13^{th}$ group elements (boron family) is
→
The product $(s)$ is / are :
→
The oxidation number of carbon in $C{H_2}C{l_2}$ is
→
Heat of combustion of two isomer $x$ and $y$ are $17 \,kJ/mol$ and $12 \,kJ/mol$ respectively. From this information it may be concluded that
→
The lightest metal among the following is:
→
In which of the following molecules the central atom does not have $sp^3$ hybridization?
→
Which of the following order of reagent is chosen to prepare $1, 3-$butadiene from ${C_2}{H_2}$
→