Question
Group the following in linear and non-linear molecules:
H2O, HOCl, BeCl2 Cl2O
H2O, HOCl, BeCl2 Cl2O
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What is hybridization? Describe sp³, sp² and sp hybridization with examples.
- Arrange the following according to given property
$\text{CH}_3\stackrel{\oplus \ \ \ }{\text{CH}}_2,\text{C}_6\text{H}_5-\stackrel{\oplus\ \ \ \ }{\text{CH}}_2,(\text{CH}_3)_3\stackrel{\oplus \ \ \ \ }{\text{CH}},$
$\text{CH}_2=\text{CH}-\stackrel{\oplus\ \ \ \ }{\text{CH}}_2$ (decreasing order of stability)
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$\text{HC}\equiv\text{C}^{\ominus},\text{Ch}_2=\stackrel{\ominus\ \ \ \ \ \ }{\text{CH}_2},\text{CH}_3-\stackrel{\ominus\ \ \ \ \ }{\text{CH}_2},\stackrel{\ominus \ \ \ \ \ }{\text{CH}_3}$ (increasing order of stabillity)
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$\text{C}_6\text{H}_5\stackrel{\bf. \ \ \ \ }{\text{CHCH}_3},\text{C}_6\text{H}_5\text{CH}_2\stackrel{\bf.\ \ \ \ \ }{\text{CH}_2},\text{C}_6\text{H}_5\stackrel{\bf.}{\text{C}}_3(\text{CH}_3)_2$ (increasing order of stabillity)
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$\text{CH}_3-\stackrel{\oplus \ \ \ \ }{\text{CH}}-\text{O}-\text{CH}_3,\text{CH}_3-\stackrel{\oplus \ \ \ \ }{\text{CH}},-\text{OCH}_3,$
${\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{O}}\\{\ \ \ \ \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ \|}\\\ \text{CH}_3-\stackrel{\oplus \ \ \ \ }{\text{CH}}\text{C}-\text{OCH}_3$ (decreasing order of stability)
A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding g as is found to weigh 11.6 g. Calculate (i) empirical formula, (ii) molar mass of the gas, and (iii) molecular formula.
Balance the following reactions by ion electron method :
(a) $MnO _4^{-}+ H ^{+}+ Fe ^{2+} \longrightarrow Mn ^{2+}+ Fe ^{3+}+ H _2 O$
(b) $Cr _2 O _7^{2-}+ H ^{+}+ I ^{-} \longrightarrow Cr ^{3+}+ I _2+ H _2 O$
→(a) $MnO _4^{-}+ H ^{+}+ Fe ^{2+} \longrightarrow Mn ^{2+}+ Fe ^{3+}+ H _2 O$
(b) $Cr _2 O _7^{2-}+ H ^{+}+ I ^{-} \longrightarrow Cr ^{3+}+ I _2+ H _2 O$
Define electronegativity. How it is different from electron gain enthalpy? Explain the periodic trend of electronegativity in periodic table.
Calculate pH when 9.8g of H2SO4 is dissolved in 2L solution.
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What are solubility and solubility products? Derive the relationship between them.
6 An alkene 'A' contains three C-C, eight C–H $\sigma$ bonds and one C–C $\pi$ bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of 'A'.
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