Asked: R.A.S./R.T.S. (Pre) 1999medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
अति मुलायम खनिज, टाल्क (सोप स्टोन) मुख्यतः है-
The extremely soft mineral, Talc (soapstone), is mainly-
SELECT CORRECT OPTION:
A
मैंगनीज सिलिकेट
Manganese silicate
B
सोडियम सिलिकेट
Sodium silicate
C
सोडियम फॉस्फेट
Sodium phosphate
D
मैग्नीशियम सिलिकेट
Magnesium silicate
Correct
Official Solution & Explanation:
Correct Answer: Option D(मैग्नीशियम सिलिकेट)
टाल्क (सोपस्टोन) मोह पैमाने पर कठोरता 1 वाला सबसे मुलायम खनिज है। इसका रासायनिक नाम जलयोजित मैग्नीशियम सिलिकेट [$Mg_3Si_4O_{10}(OH)_2$] है।
Talc (soapstone) is the softest known mineral (hardness 1 on Mohs scale). It is chemically hydrated magnesium silicate.
Subject: General Science•Topic: Metals, Minerals, Ores: Properties and Uses•Subtopic: Metals, Minerals, Ores: Properties and Uses
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