नीचे दो कथन दिए गए हैं। कथनों को ध्यानपूर्वक पढ़ें और सही विकल्प का चयन करें। कथन I: मोल, प्रतीक mol, पदार्थ की मात्रा का SI मात्रक है। कथन II: एक मोल में ठीक 6.02214076 × 1023 तात्विक संस्थाएँ (elementary entities) होती हैं।

Select the INCORRECT statements from the following: (a) 22 books have infinite significant figures. (b) The result of the calculation 2.5 × 1.25 has four significant figures. (c) Zeros preceding the first non-zero digit are significant. (d) The result of the calculation 12.11 + 18.0 + 1.012 has three significant figures.

If A represents normality and B represents molarity, what is the correct relationship between normality and molarity? (Where M is molecular weight and E is equivalent weight)