Question

In silicon dioxide

A. there are double bonds between silicon and oxygen atoms
B. silicon atom is bonded to two oxygen atoms
C. each silicon atom is surrounded by two oxygen atoms and each oxygen atom is bonded to two silicon atoms
D. each silicon atom is surrounded by four oxygen atoms and each oxygen atom is bonded to two silicon atoms.  
Answer :   each silicon atom is surrounded by four oxygen atoms and each oxygen atom is bonded to two silicon atoms.
Solution :
In $$Si{O_2}$$  (quartz), each of $$O$$  -atom is shared between two $$SiO_4^{4 - }$$  tetrahedra.
P - Block Elements mcq solution image

Releted MCQ Question on
Inorganic Chemistry >> P - Block Elements

Releted Question 1

The reddish brown coloured gas formed when nitric oxide is oxidised by air is

A. $${N_2}{O_5}$$
B. $${N_2}{O_4}$$
C. $$N{O_2}$$
D. $${N_2}{O_3}$$
Releted Question 2

The temporary hardness of water due to calcium carbonate can be removed by adding —

A. $$CaC{O_3}$$
B. $$Ca{\left( {OH} \right)_2}\,$$
C. $$CaC{l_2}$$
D. $$\,HCl$$
Releted Question 3

Which of the following is most stable to heat

A. $$HCl$$
B. $$HOCl$$
C. $$HBr$$
D. $$HI$$
Releted Question 4

White $$P$$ reacts with caustic soda. The products are $$P{H_3}$$ and $$Na{H_2}P{O_2}.$$   This reaction is an example of

A. Oxidation
B. Reduction
C. oxidation and reduction
D. Neutralisation

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P - Block Elements


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