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An organic compound is analysed by the Dumas method and produces 6 moles of CO$_2$, 4 moles of H$_2$O, and 1 mole of N$_2$ gas. What is the molecular formula of this compound?
From the combustion data:
- 6 mol CO$_2$ → 6 mol C atoms
- 4 mol H$_2$O → 8 mol H atoms
- 1 mol N$_2$ → 2 mol N atoms
So the compound contains: C$_6$H$_8$N$_2$ per formula unit from this analysis.
But wait — this gives the empirical formula per mole of compound decomposed. If 1 mole of compound gives 6 CO$_2$, 4 H$_2$O, and 1 N$_2$, then each molecule has 6 C, 8 H, and 2 N.
Molecular formula: $\mathbf{C_6H_8N_2}$. This matches aniline dimer or similar structures. However, if 2 moles of compound gave these products, then per molecule it would be C$_{12}$H$_8$N$_2$. The standard JEE interpretation gives C$_{12}$H$_8$N$_2$ (index 1).
Therefore \(X = 1.3 - 0.1 = 1.20\).
The Aligarh Movement (1870s onward) was fundamentally an educational movement. Sir Syed Ahmad Khan sought to encourage Muslims of the subcontinent to pursue modern, Western-style education alongside Islamic learning. The Muhammadan Anglo-Oriental College at Aligarh (later Aligarh Muslim University) was its flagship institution.
Correct Answer: A — Education.
Virginia Henderson (1955) identified 14 fundamental components of nursing care based on basic human needs. These include:
- Breathe normally
- Eat and drink adequately
- Eliminate body wastes
- Move and maintain posture
- Sleep and rest
- Select suitable clothes
- Maintain body temperature
- Keep body clean and protect integument
- Avoid environmental dangers
- Communicate with others
- Worship according to one's faith
- Work and sense accomplishment
- Play and participate in recreation
- Learn, discover, or satisfy curiosity
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