230083
On the basis of which physical property separation of different fractions in fractional distillation technique takes place ?
1 Solubility
2 Freezing point
3 Boiling point
4 Melting point
Explanation:
: Separation of liquids into their pure form to from its liquid mixture is done by fractional distillation technique. It is done, when two liquids have difference in their boiling points $(10-40 \mathrm{~K})$.
Shift-II]**
Hydrocarbons
230085
In an agricultural field, which among the following is the highest producer of methane?
1 Wheat crop
2 Paddy crop
3 Cotton crop
4 Groundnut crop
Explanation:
: Rice is grown in flooded fields, a situation that depletes the soil of oxygen. Soils that are anaerobic (lacking oxygen) allow the bacteria that produce methane from decomposing organic matter to thrive. Some of this methane then bubbles to the surface, but most of it is diffused back into the atmosphere through the rice plants themselves. Hence, the rice Paddy field that produces maximum methane gas into the atmosphere.
Shift-I]**
Hydrocarbons
230086
In Wurtz reaction the reagent used is:
1 $\mathrm{Na}$
2 $\mathrm{Na} /$ liq. $\mathrm{NH}_3$
3 $\mathrm{Na} /$ dry ether
4 $\mathrm{Na} /$ dry alcohol
Explanation:
: In Wurtz reaction, alkyl halide react with $\mathrm{Na}$ in the presence of dry ether to give the alkane. \(2 \mathrm{CH}_3-\mathrm{Cl}+2 \mathrm{Na} \xrightarrow{\text { ether }} \underset{\text { Ethane }}{\mathrm{CH}_3-\mathrm{CH}_3+2 \mathrm{NaCl}}\)
AP EAMCET (Medical) -1998
Hydrocarbons
230087
The gaseous products formed at cathode $(X)$ and anode $(Y)$, when an aqueous solution of sodium acetate is electrolysed are
230083
On the basis of which physical property separation of different fractions in fractional distillation technique takes place ?
1 Solubility
2 Freezing point
3 Boiling point
4 Melting point
Explanation:
: Separation of liquids into their pure form to from its liquid mixture is done by fractional distillation technique. It is done, when two liquids have difference in their boiling points $(10-40 \mathrm{~K})$.
Shift-II]**
Hydrocarbons
230085
In an agricultural field, which among the following is the highest producer of methane?
1 Wheat crop
2 Paddy crop
3 Cotton crop
4 Groundnut crop
Explanation:
: Rice is grown in flooded fields, a situation that depletes the soil of oxygen. Soils that are anaerobic (lacking oxygen) allow the bacteria that produce methane from decomposing organic matter to thrive. Some of this methane then bubbles to the surface, but most of it is diffused back into the atmosphere through the rice plants themselves. Hence, the rice Paddy field that produces maximum methane gas into the atmosphere.
Shift-I]**
Hydrocarbons
230086
In Wurtz reaction the reagent used is:
1 $\mathrm{Na}$
2 $\mathrm{Na} /$ liq. $\mathrm{NH}_3$
3 $\mathrm{Na} /$ dry ether
4 $\mathrm{Na} /$ dry alcohol
Explanation:
: In Wurtz reaction, alkyl halide react with $\mathrm{Na}$ in the presence of dry ether to give the alkane. \(2 \mathrm{CH}_3-\mathrm{Cl}+2 \mathrm{Na} \xrightarrow{\text { ether }} \underset{\text { Ethane }}{\mathrm{CH}_3-\mathrm{CH}_3+2 \mathrm{NaCl}}\)
AP EAMCET (Medical) -1998
Hydrocarbons
230087
The gaseous products formed at cathode $(X)$ and anode $(Y)$, when an aqueous solution of sodium acetate is electrolysed are
230083
On the basis of which physical property separation of different fractions in fractional distillation technique takes place ?
1 Solubility
2 Freezing point
3 Boiling point
4 Melting point
Explanation:
: Separation of liquids into their pure form to from its liquid mixture is done by fractional distillation technique. It is done, when two liquids have difference in their boiling points $(10-40 \mathrm{~K})$.
Shift-II]**
Hydrocarbons
230085
In an agricultural field, which among the following is the highest producer of methane?
1 Wheat crop
2 Paddy crop
3 Cotton crop
4 Groundnut crop
Explanation:
: Rice is grown in flooded fields, a situation that depletes the soil of oxygen. Soils that are anaerobic (lacking oxygen) allow the bacteria that produce methane from decomposing organic matter to thrive. Some of this methane then bubbles to the surface, but most of it is diffused back into the atmosphere through the rice plants themselves. Hence, the rice Paddy field that produces maximum methane gas into the atmosphere.
Shift-I]**
Hydrocarbons
230086
In Wurtz reaction the reagent used is:
1 $\mathrm{Na}$
2 $\mathrm{Na} /$ liq. $\mathrm{NH}_3$
3 $\mathrm{Na} /$ dry ether
4 $\mathrm{Na} /$ dry alcohol
Explanation:
: In Wurtz reaction, alkyl halide react with $\mathrm{Na}$ in the presence of dry ether to give the alkane. \(2 \mathrm{CH}_3-\mathrm{Cl}+2 \mathrm{Na} \xrightarrow{\text { ether }} \underset{\text { Ethane }}{\mathrm{CH}_3-\mathrm{CH}_3+2 \mathrm{NaCl}}\)
AP EAMCET (Medical) -1998
Hydrocarbons
230087
The gaseous products formed at cathode $(X)$ and anode $(Y)$, when an aqueous solution of sodium acetate is electrolysed are
230083
On the basis of which physical property separation of different fractions in fractional distillation technique takes place ?
1 Solubility
2 Freezing point
3 Boiling point
4 Melting point
Explanation:
: Separation of liquids into their pure form to from its liquid mixture is done by fractional distillation technique. It is done, when two liquids have difference in their boiling points $(10-40 \mathrm{~K})$.
Shift-II]**
Hydrocarbons
230085
In an agricultural field, which among the following is the highest producer of methane?
1 Wheat crop
2 Paddy crop
3 Cotton crop
4 Groundnut crop
Explanation:
: Rice is grown in flooded fields, a situation that depletes the soil of oxygen. Soils that are anaerobic (lacking oxygen) allow the bacteria that produce methane from decomposing organic matter to thrive. Some of this methane then bubbles to the surface, but most of it is diffused back into the atmosphere through the rice plants themselves. Hence, the rice Paddy field that produces maximum methane gas into the atmosphere.
Shift-I]**
Hydrocarbons
230086
In Wurtz reaction the reagent used is:
1 $\mathrm{Na}$
2 $\mathrm{Na} /$ liq. $\mathrm{NH}_3$
3 $\mathrm{Na} /$ dry ether
4 $\mathrm{Na} /$ dry alcohol
Explanation:
: In Wurtz reaction, alkyl halide react with $\mathrm{Na}$ in the presence of dry ether to give the alkane. \(2 \mathrm{CH}_3-\mathrm{Cl}+2 \mathrm{Na} \xrightarrow{\text { ether }} \underset{\text { Ethane }}{\mathrm{CH}_3-\mathrm{CH}_3+2 \mathrm{NaCl}}\)
AP EAMCET (Medical) -1998
Hydrocarbons
230087
The gaseous products formed at cathode $(X)$ and anode $(Y)$, when an aqueous solution of sodium acetate is electrolysed are
