Question

Red Phosphorus is a member of which block of elements in the periodic table?
(A)
s-block
(B)
p-block
(C)
d-block
(D)
S-block
16. SO2 से SO., प्राप्त करने के लिये किस उत्प्रेरक का उपयोग होता है ?
(A)
V20s
(B)
V.00
(C)
Vos
(D)
Fes
Which catalyst is used for converting SO2 into sogas?
(A)
V20s
(B)
V206
(C)
VOS
(D)
Fes
17.
निम्नलिखित में कौन-सा तत्व प्रकृति में मुक्त अवस्था में पाया जाता है ?
(A)
नाइट्रोजन
(B)
आर्सेनिक
(C)
फास्फोरस
(D)
ऐन्टीमनी​

Answer 1

Answer:

ans 1

b ....p block

ans2

a ......v2O5

Answer 2

Red Phosphorus is a member of the p-block of elements in the periodic table.

The correct answer is option b.

• In the periodic table, red phosphorus belongs to the Group 5A block of elements.
• Red phosphorus is regarded as a derivative of the P4 molecule and is one of the most prevalent allotropes of phosphorus.
• It is a network of phosphorus atoms that is non-crystalline and amorphous.
• There is evidence that it is more stable than white phosphorus (another naturally occurring phosphorus allotrope).
• The granular texture and bright red colour of red phosphorus serve as distinguishing features.

V2O5 catalyst is used for converting SO2 into SO gas.

• Sulphur trioxide is produced from sulphur dioxide using a catalyst made of vanadium oxide (V2O5).
• The term "contact procedure" refers to this outcome or action. Vanadium oxide has replaced platinum as the catalyst for this reaction because platinum is more likely to react with the arsenic impurities in the sulphur feedstock.

17. Nitrogen is a naturally occurring element that is present in the soil, mineral deposits, and organic substances and makes up 78% of the Earth's atmosphere.

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