Download App

STD 11 -p-Block elements - I — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 -p-Block elements - I4 Marks
MCQ
Which statement is wrong ?
  • A
    Beryl is an example of cyclic silicate.
  • B
    $Mg_2SiO_4$ is orthosilicate.
  • C
    Basic structural unit in silicates is the $SiO_4$ tetrahedron.
  • ✓
    Feldspars are not aluminosilicates.
✓

Answer

Correct option: D.
Feldspars are not aluminosilicates.
d
Oomycetes (egg fungus) include water moulds, white rusts and downy mildews. In these, female gamete is smaller and motile, whereas male gamete is larger and non-motile. Isogametes are found in algae like Ultrix, Chlamydornonas, Spirogyra, etc., which are similar in structure, function and behavior. An isogametes are found in Chlamydornonas in which one gamete is larger and non-motile and the other one is motile and smaller. Oogamy is the fusion of non-motile egg with motile sperm. The gametes, differ both morphologically as well as physiologically. It occurs in Chlamydomonas, Fucus Chara, Volvox, etc.

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

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

In which of the following pairs of elements the electronegativity of first element is less  than that of second element :-
→
A current of $0.4\  amp$ is passed through excess of molten $MgCl_2$ for $9.65 \times 10^4\ sec$. The mass of $Mg$ deposited at the cathode is .............. $\mathrm{gm}$
→
Choose the incorrect order?
→
$C_6H_6$ $+$  $CH_3-CH=CH_2$ $\xrightarrow{{{H_3}P{O_4}}}A\,\xrightarrow[{heat}]{{{O_2}}}B\xrightarrow{{dil\,.\,{H_2}S{O_4}}}C + D$

$A, \,C$ and $D$ are

→
$C{H_3}COOH\mathop {\xrightarrow{\Delta }}\limits_{{P_2}{O_5}} X$ . Identify $X$
→
Which of the following orbitals has a dumbbell shape
→
A layer of coke is spread over bauxite during electrolytic reduction of alumina by Hall-Heroult process. This layer acts as a/an:
→
${H_2}S{O_4}$ acts as dehydrating agent in its reaction with
→
The standard reduction electrode potentials of four elements are

$A = - 0.250\,V$   $B = - 0.136\,V$   $C = - 0.126\,V$     $D = - 0.402\,V$

The element that displaces $A$ from its compounds is

→
Nitrobenzene on reduction by zinc and $N{H_4}Cl$ gives
→