230073
Which of the following reagents when heated with ethyl chloride, forms ethylene?
1 Aqueous $\mathrm{KOH}$
2 $\mathrm{Zn} / \mathrm{HCl}$
3 Alcoholic $\mathrm{KOH}$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: Ethyl chloride reacts with aq. $\mathrm{KOH}$ and alcohol forms. Ethyl chloride reacts with $\mathrm{Zn} / \mathrm{HCl}$ and alkane forms. Ethyl chloride reacts with alc. $\mathrm{KOH}$ and ethene forms. The reaction of the process is- \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl} \xrightarrow{\text { alc. } \mathrm{KOH}} \mathrm{CH}_2=\mathrm{CH}_2+\mathrm{HCl}\)
A.P.EAMCET-2006
Hydrocarbons
230074
A molecule (X) has (i) four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and $s$ orbitals (ii) one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and (iii) one $\pi$ bond formed by $p_x$ and $p_z$ orbitals. Which of the following is $\mathbf{X}$ ?
1 $\mathrm{C}_2 \mathrm{H}_6$
2 $\mathrm{C}_2 \mathrm{H}_3 \mathrm{Cl}$
3 $\mathrm{C}_2 \mathrm{H}_2 \mathrm{Cl}_2$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: A molecule $\mathrm{C}_2 \mathrm{H}_4$ has four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and s-orbital and one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and one $\pi$ bond formed by $\mathrm{p}_{\mathrm{x}}$ and $\mathrm{p}_z$ orbitals. Geometry of molecule is-
A.P.EAMCET-2006
Hydrocarbons
230075
Which of the following compounds shows maximum boiling point?
1 Iso-octane
2 $\mathrm{n}$ - octane
3 2,2,3,3-tetramethyl butane
4 $\mathrm{n}$ - butane
Explanation:
: Boiling point $\propto$ Molecular weight of compound $\infty \frac{1}{\text { Branching of compound }}$
MPPET - 2012
Hydrocarbons
230084
Carbon and hydrogen in an organic compound are detected as.......
: Carbon and hydrogen in an organic compound are detected as $\mathrm{CaCO}_3, \mathrm{CuSO}_4 5 \mathrm{H}_2 \mathrm{O}$. The organic compound is treated with dry copper oxide when $\mathrm{C}$ and $\mathrm{H}$ of the organic compound are oxidized to carbon dioxide and water. $\mathrm{C}$ of organic compound $+2 \mathrm{CuO} \stackrel{\perp}{\longrightarrow} \mathrm{CO}_2+2 \mathrm{Cu}$ Carbon dioxide is detected by passing it through lime to form calcium carbonate and the presence of hydrogen is detected by passing it through anhydrous copper sulphate (white) which turns blue.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Hydrocarbons
230073
Which of the following reagents when heated with ethyl chloride, forms ethylene?
1 Aqueous $\mathrm{KOH}$
2 $\mathrm{Zn} / \mathrm{HCl}$
3 Alcoholic $\mathrm{KOH}$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: Ethyl chloride reacts with aq. $\mathrm{KOH}$ and alcohol forms. Ethyl chloride reacts with $\mathrm{Zn} / \mathrm{HCl}$ and alkane forms. Ethyl chloride reacts with alc. $\mathrm{KOH}$ and ethene forms. The reaction of the process is- \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl} \xrightarrow{\text { alc. } \mathrm{KOH}} \mathrm{CH}_2=\mathrm{CH}_2+\mathrm{HCl}\)
A.P.EAMCET-2006
Hydrocarbons
230074
A molecule (X) has (i) four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and $s$ orbitals (ii) one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and (iii) one $\pi$ bond formed by $p_x$ and $p_z$ orbitals. Which of the following is $\mathbf{X}$ ?
1 $\mathrm{C}_2 \mathrm{H}_6$
2 $\mathrm{C}_2 \mathrm{H}_3 \mathrm{Cl}$
3 $\mathrm{C}_2 \mathrm{H}_2 \mathrm{Cl}_2$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: A molecule $\mathrm{C}_2 \mathrm{H}_4$ has four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and s-orbital and one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and one $\pi$ bond formed by $\mathrm{p}_{\mathrm{x}}$ and $\mathrm{p}_z$ orbitals. Geometry of molecule is-
A.P.EAMCET-2006
Hydrocarbons
230075
Which of the following compounds shows maximum boiling point?
1 Iso-octane
2 $\mathrm{n}$ - octane
3 2,2,3,3-tetramethyl butane
4 $\mathrm{n}$ - butane
Explanation:
: Boiling point $\propto$ Molecular weight of compound $\infty \frac{1}{\text { Branching of compound }}$
MPPET - 2012
Hydrocarbons
230084
Carbon and hydrogen in an organic compound are detected as.......
: Carbon and hydrogen in an organic compound are detected as $\mathrm{CaCO}_3, \mathrm{CuSO}_4 5 \mathrm{H}_2 \mathrm{O}$. The organic compound is treated with dry copper oxide when $\mathrm{C}$ and $\mathrm{H}$ of the organic compound are oxidized to carbon dioxide and water. $\mathrm{C}$ of organic compound $+2 \mathrm{CuO} \stackrel{\perp}{\longrightarrow} \mathrm{CO}_2+2 \mathrm{Cu}$ Carbon dioxide is detected by passing it through lime to form calcium carbonate and the presence of hydrogen is detected by passing it through anhydrous copper sulphate (white) which turns blue.
230073
Which of the following reagents when heated with ethyl chloride, forms ethylene?
1 Aqueous $\mathrm{KOH}$
2 $\mathrm{Zn} / \mathrm{HCl}$
3 Alcoholic $\mathrm{KOH}$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: Ethyl chloride reacts with aq. $\mathrm{KOH}$ and alcohol forms. Ethyl chloride reacts with $\mathrm{Zn} / \mathrm{HCl}$ and alkane forms. Ethyl chloride reacts with alc. $\mathrm{KOH}$ and ethene forms. The reaction of the process is- \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl} \xrightarrow{\text { alc. } \mathrm{KOH}} \mathrm{CH}_2=\mathrm{CH}_2+\mathrm{HCl}\)
A.P.EAMCET-2006
Hydrocarbons
230074
A molecule (X) has (i) four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and $s$ orbitals (ii) one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and (iii) one $\pi$ bond formed by $p_x$ and $p_z$ orbitals. Which of the following is $\mathbf{X}$ ?
1 $\mathrm{C}_2 \mathrm{H}_6$
2 $\mathrm{C}_2 \mathrm{H}_3 \mathrm{Cl}$
3 $\mathrm{C}_2 \mathrm{H}_2 \mathrm{Cl}_2$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: A molecule $\mathrm{C}_2 \mathrm{H}_4$ has four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and s-orbital and one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and one $\pi$ bond formed by $\mathrm{p}_{\mathrm{x}}$ and $\mathrm{p}_z$ orbitals. Geometry of molecule is-
A.P.EAMCET-2006
Hydrocarbons
230075
Which of the following compounds shows maximum boiling point?
1 Iso-octane
2 $\mathrm{n}$ - octane
3 2,2,3,3-tetramethyl butane
4 $\mathrm{n}$ - butane
Explanation:
: Boiling point $\propto$ Molecular weight of compound $\infty \frac{1}{\text { Branching of compound }}$
MPPET - 2012
Hydrocarbons
230084
Carbon and hydrogen in an organic compound are detected as.......
: Carbon and hydrogen in an organic compound are detected as $\mathrm{CaCO}_3, \mathrm{CuSO}_4 5 \mathrm{H}_2 \mathrm{O}$. The organic compound is treated with dry copper oxide when $\mathrm{C}$ and $\mathrm{H}$ of the organic compound are oxidized to carbon dioxide and water. $\mathrm{C}$ of organic compound $+2 \mathrm{CuO} \stackrel{\perp}{\longrightarrow} \mathrm{CO}_2+2 \mathrm{Cu}$ Carbon dioxide is detected by passing it through lime to form calcium carbonate and the presence of hydrogen is detected by passing it through anhydrous copper sulphate (white) which turns blue.
230073
Which of the following reagents when heated with ethyl chloride, forms ethylene?
1 Aqueous $\mathrm{KOH}$
2 $\mathrm{Zn} / \mathrm{HCl}$
3 Alcoholic $\mathrm{KOH}$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: Ethyl chloride reacts with aq. $\mathrm{KOH}$ and alcohol forms. Ethyl chloride reacts with $\mathrm{Zn} / \mathrm{HCl}$ and alkane forms. Ethyl chloride reacts with alc. $\mathrm{KOH}$ and ethene forms. The reaction of the process is- \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl} \xrightarrow{\text { alc. } \mathrm{KOH}} \mathrm{CH}_2=\mathrm{CH}_2+\mathrm{HCl}\)
A.P.EAMCET-2006
Hydrocarbons
230074
A molecule (X) has (i) four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and $s$ orbitals (ii) one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and (iii) one $\pi$ bond formed by $p_x$ and $p_z$ orbitals. Which of the following is $\mathbf{X}$ ?
1 $\mathrm{C}_2 \mathrm{H}_6$
2 $\mathrm{C}_2 \mathrm{H}_3 \mathrm{Cl}$
3 $\mathrm{C}_2 \mathrm{H}_2 \mathrm{Cl}_2$
4 $\mathrm{C}_2 \mathrm{H}_4$
Explanation:
: A molecule $\mathrm{C}_2 \mathrm{H}_4$ has four sigma bonds formed by the overlap of $\mathrm{sp}^2$ and s-orbital and one sigma bond formed by $\mathrm{sp}^2$ and $\mathrm{sp}^2$ orbitals and one $\pi$ bond formed by $\mathrm{p}_{\mathrm{x}}$ and $\mathrm{p}_z$ orbitals. Geometry of molecule is-
A.P.EAMCET-2006
Hydrocarbons
230075
Which of the following compounds shows maximum boiling point?
1 Iso-octane
2 $\mathrm{n}$ - octane
3 2,2,3,3-tetramethyl butane
4 $\mathrm{n}$ - butane
Explanation:
: Boiling point $\propto$ Molecular weight of compound $\infty \frac{1}{\text { Branching of compound }}$
MPPET - 2012
Hydrocarbons
230084
Carbon and hydrogen in an organic compound are detected as.......
: Carbon and hydrogen in an organic compound are detected as $\mathrm{CaCO}_3, \mathrm{CuSO}_4 5 \mathrm{H}_2 \mathrm{O}$. The organic compound is treated with dry copper oxide when $\mathrm{C}$ and $\mathrm{H}$ of the organic compound are oxidized to carbon dioxide and water. $\mathrm{C}$ of organic compound $+2 \mathrm{CuO} \stackrel{\perp}{\longrightarrow} \mathrm{CO}_2+2 \mathrm{Cu}$ Carbon dioxide is detected by passing it through lime to form calcium carbonate and the presence of hydrogen is detected by passing it through anhydrous copper sulphate (white) which turns blue.
