Assertion :- Oxidation number of carbon in `CH_(2)O` is zero. Reason :- `CH_(2)O` (formaldehyde) is a covalent compound.

Assertion :- Oxidation number of carbon in `CH_(2)O` is zero. Reason :- `CH_(2)O` (formaldehyde) is a covalent compound.
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Assertion :- Oxidation number of carbon in `CH_(2)O` is zero. Reason :- `CH_(2)O` (formaldehyde ... is False. D. If both Assertion & Reason are False.
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Assertion: (A) Ethers are relatively inert when compared to `C_(2)H_(5)OH` Reason (R): The hybridization of C and O in `CH_(3)-O-CH_(3) is SP^(3)`

Description : Assertion: (A) Ethers are relatively inert when compared to `C_(2)H_(5)OH` Reason (R): The hybridization of C and O in `CH_(3)-O-CH_(3) is SP^(3)`

Last Answer : Assertion: (A) Ethers are relatively inert when compared to `C_(2)H_(5)OH` Reason (R): The hybridization of ... R is false D. A is false but R is true

Assertion :- Oxidation number of Cr in `Cr(CO)_(6)` is zero. Reason :- Cr is a metal.

Description : Assertion :- Oxidation number of Cr in `Cr(CO)_(6)` is zero. Reason :- Cr is a metal.

Last Answer : Assertion :- Oxidation number of Cr in `Cr(CO)_(6)` is zero. Reason :- Cr is a metal. A. ... Reason is False. D. If both Assertion & Reason are False.

Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is bonded to neutral ligand, carbonyl.

Description : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is bonded to neutral ligand, carbonyl.

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Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. Reason :- `CaH_(2)` is a metal hydride and for metal hydrides, h

Description : Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. Reason :- `CaH_(2)` is a metal hydride and for metal hydrides, h

Last Answer : Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. ... Reason is False. D. If both Assertion & Reason are False.

`(CH_(3))_(2)CHOH overset("Mild")underset("oxidation[O]")rarr (X) overset((i)CH_(3)Mgl)underset((ii)"Hydrolysis")rarr (Y)` In the above sequence of re

Description : `(CH_(3))_(2)CHOH overset("Mild")underset("oxidation[O]")rarr (X) overset((i)CH_(3)Mgl)underset((ii)"Hydrolysis")rarr (Y)` In the above sequence of re

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Assertion :- At constant temp `0^(@)C` and 1 atm, the change `H_(2)O(s)rarr H_(2)O(l)Delta H` and `Delta E` both are zero. Reason :- During isothermal

Description : Assertion :- At constant temp `0^(@)C` and 1 atm, the change `H_(2)O(s)rarr H_(2)O(l)Delta H` and `Delta E` both are zero. Reason :- During isothermal

Last Answer : Assertion :- At constant temp `0^(@)C` and 1 atm, the change `H_(2)O(s)rarr H_(2)O(l) ... Reason is False. D. If both Assertion & Reason are false.

Assertion :- O.N. of carbon in `H-C-=N` is `+4`. Reason :- Carbon always shows an O.N of +4.

Description : Assertion :- O.N. of carbon in `H-C-=N` is `+4`. Reason :- Carbon always shows an O.N of +4.

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Number of chiral carbon persent in the following compound: `CH_(3)-underset(overset(|)(OH))(C)H-CH_(2)-underset(overset(|)(Br))(C)H-underset(overset(|

Description : Number of chiral carbon persent in the following compound: `CH_(3)-underset(overset(|)(OH))(C)H-CH_(2)-underset(overset(|)(Br))(C)H-underset(overset(|

Last Answer : Number of chiral carbon persent in the following compound: `CH_(3)-underset(overset(|)(OH))(C)H-CH_(2)-underset(overset( ... (3)` A. 2 B. 3 C. 4 D. 5

In the chemical reaction `CH_(3)CH_(2)NH_(2) + CHCI_(3) + 3KOH rarr (A) + (B) + 3H_(2)O` the compound `(A) `and `(B)` are respectively

Description : In the chemical reaction `CH_(3)CH_(2)NH_(2) + CHCI_(3) + 3KOH rarr (A) + (B) + 3H_(2)O` the compound `(A) `and `(B)` are respectively

Last Answer : In the chemical reaction `CH_(3)CH_(2)NH_(2) + CHCI_(3) + 3KOH rarr (A) + (B) + 3H_(2)O` the compound ... `3KCl` D. `CH_(3)CH_(2)CONH_(2)` and `3KCl`

The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

Description : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

Last Answer : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2) ... and Friedel-Crafts acylation D. Dehydration and Friedel-Crafts acylation

The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

Description : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

Last Answer : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_ ... product S is The product S is A. B. C. D.

`CH_(3)NH_(2)+CHCl_(3)+KOH to` Nitrogen containing compound `+KCl + H_(2)O`.

Description : `CH_(3)NH_(2)+CHCl_(3)+KOH to` Nitrogen containing compound `+KCl + H_(2)O`.

Last Answer : `CH_(3)NH_(2)+CHCl_(3)+KOH to` Nitrogen containing compound `+KCl + H_(2)O`. A. `CH_(3)-C-=N` B. `CH_(3)-NH- ... -= C^(+)` D. `CH_(3)-N^(+)-=C^(-)`

An organic compound A,`C_(5)H_(8)O` reacts with `H_(2)O, NH_(3)` and `CH_(3)COOH` as described below A is

Description : An organic compound A,`C_(5)H_(8)O` reacts with `H_(2)O, NH_(3)` and `CH_(3)COOH` as described below A is

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Ethylene glycol undergoes oxidation with hot acidic KMnO4 to form : (a) Formic acid (b) Formaldehyde(c) Acetic acid(d) Acetaldehyde

Description : Ethylene glycol undergoes oxidation with hot acidic KMnO4 to form : (a) Formic acid (b) Formaldehyde (c) Acetic acid (d) Acetaldehyde

Last Answer : Formic acid

Catalytic oxidation-dehydrogenation of methyl alcohol produces (A) Formaldehyde (B) Phenol (C) Acetone (D) Maleic anhydride

Description : Catalytic oxidation-dehydrogenation of methyl alcohol produces (A) Formaldehyde (B) Phenol (C) Acetone (D) Maleic anhydride

Last Answer : (A) Formaldehyde

Which among the following is a covalent compound? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Description : Which among the following is a covalent compound? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Last Answer : (4) Carbon tetrachloride Explanation: Ionic compounds are made up of a metal and non-metal, and covalent compounds are made up of two nonmetals

Which among the following is a covalent compound ? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Description : Which among the following is a covalent compound ? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Last Answer : Carbon tetrachloride

Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four oxygen atoms are involved in peroxide linkage.

Description : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four oxygen atoms are involved in peroxide linkage.

Last Answer : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four ... Reason is False. D. If both Assertion & Reason are False.

Assertion :- In a redox reaction, the oxidation number of the oxidant decreases while that of reductant increases. Reason :- Oxidant gains electron(s)

Description : Assertion :- In a redox reaction, the oxidation number of the oxidant decreases while that of reductant increases. Reason :- Oxidant gains electron(s)

Last Answer : Assertion :- In a redox reaction, the oxidation number of the oxidant decreases while that of reductant ... D. If both Assertion & Reason are False.

Assertion :- Oxidation number of `S` in `HSO_(3)^(-)` is `+4`. Reason :- Sulphur is in different oxidation state in different compounds.

Description : Assertion :- Oxidation number of `S` in `HSO_(3)^(-)` is `+4`. Reason :- Sulphur is in different oxidation state in different compounds.

Last Answer : Assertion :- Oxidation number of `S` in `HSO_(3)^(-)` is `+4`. Reason :- Sulphur is in ... Reason is False. D. If both Assertion & Reason are False.

Assertion :- In `HClO_(4)`, Chlorine has the oxidation number of `+4`. Reason :- `HClO_(4)` (perchloric) acid has two peroxide linkage.

Description : Assertion :- In `HClO_(4)`, Chlorine has the oxidation number of `+4`. Reason :- `HClO_(4)` (perchloric) acid has two peroxide linkage.

Last Answer : Assertion :- In `HClO_(4)`, Chlorine has the oxidation number of `+4`. Reason :- `HClO_(4)` ( ... is False. D. If both Assertion & Reason are False.

Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. Reason :- The oxidation number of Nitrogen remains sa

Description : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. Reason :- The oxidation number of Nitrogen remains sa

Last Answer : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. ... False. D. If both Assertion & Reason are False.

Assertion :- In `NH_(4)NO_(3)`, the oxidation number of the two N-atoms is not equal. Reason :- One N atom is present in the ammonium ion while the ot

Description : Assertion :- In `NH_(4)NO_(3)`, the oxidation number of the two N-atoms is not equal. Reason :- One N atom is present in the ammonium ion while the ot

Last Answer : Assertion :- In `NH_(4)NO_(3)`, the oxidation number of the two N-atoms is not equal. Reason : ... is False. D. If both Assertion & Reason are False.

A complex compound in which the oxidation number of a metal is zero is - (1) K4 [Fe (CN)6] (2) K3 [Fe (CN)6] (3) [Ni (CO)4] (4) [Pl (NH3)4]Cl2

Description : A complex compound in which the oxidation number of a metal is zero is - (1) K4 [Fe (CN)6] (2) K3 [Fe (CN)6] (3) [Ni (CO)4] (4) [Pl (NH3)4]Cl2

Last Answer : (3) [Ni (CO)4]

Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- Fluorine cannot show positive oxidation state.

Description : Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- Fluorine cannot show positive oxidation state.

Last Answer : Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- ... is False. D. If both Assertion & Reason are False.

Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities. A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is not a correct explanation of A C. A is true but R is false D. A is false but R is true

Description : Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other ... of A C. A is true but R is false D. A is false but R is true

Last Answer : ANS: A

Among the following, the number of elements showing only one non-zero oxidation state is: O,Cl,F,N,P,Sn,Tl,Na,Ti

Description : Among the following, the number of elements showing only one non-zero oxidation state is: O,Cl,F,N,P,Sn,Tl,Na,Ti

Last Answer : Among the following, the number of elements showing only one non-zero oxidation state is: O,Cl,F,N,P,Sn,Tl,Na,Ti

`B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the oxidation number of central atom that is responsible for green flame

Description : `B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the oxidation number of central atom that is responsible for green flame

Last Answer : `B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the ... atom that is responsible for green flame in compound `(A)`?

A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T

Description : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T

Last Answer : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2) ... ` D. `CH_(3)COCH_(3), CH_(3)CHOHCH_(3)`

Identify the hydrocarbon which on ozonolysis gives :- (a) Only acetone (b) 1 equivalent of propanal + 1 equivalent of formaldehyde (c ) 1 equivalent o

Description : Identify the hydrocarbon which on ozonolysis gives :- (a) Only acetone (b) 1 equivalent of propanal + 1 equivalent of formaldehyde (c ) 1 equivalent o

Last Answer : Identify the hydrocarbon which on ozonolysis gives :- (a) Only acetone (b) 1 equivalent of ... 1 equivalent of acetone + 1 equivalent of acetaldehyde

On vigorous oxidation by permangnate solution `(CH_(3))_(2)=CHCH_(2)CHO` gives

Description : On vigorous oxidation by permangnate solution `(CH_(3))_(2)=CHCH_(2)CHO` gives

Last Answer : On vigorous oxidation by permangnate solution `(CH_(3))_(2)=CHCH_(2)CHO` gives A. `(CH_(3))_(2)CO` and `OHC ... CH_(3))_(2)CO` and `CH_(2)(COOH)_(2)`

An alcohol on oxidation is found to given `CH_(3)COOH` and `CH_(3)CH_(2)COOH`. The structure of the alcohol is

Description : An alcohol on oxidation is found to given `CH_(3)COOH` and `CH_(3)CH_(2)COOH`. The structure of the alcohol is

Last Answer : An alcohol on oxidation is found to given `CH_(3)COOH` and `CH_(3)CH_(2)COOH`. The structure of the alcohol is ... `CH_(3)CH (OH) CH_(2)CH_(2) CH_(3)`

Hydroboration -Oxidation of `CH_(3)CH = CH_(2)` produces

Description : Hydroboration -Oxidation of `CH_(3)CH = CH_(2)` produces

Last Answer : Hydroboration -Oxidation of `CH_(3)CH = CH_(2)` produces A. `CH_(3)CH_(2)CH_(2)OH` B. `CH_(3)CH (OH) ... CH_(3)CH(OH) CH_(2)OH` D. `CH_(3)COCH_(3)`

Assertion (A): Ethyl alcohol is soluble in organic solvents Reason(R): Calcium chloride can form an addition compound with ethyl alcohol

Description : Assertion (A): Ethyl alcohol is soluble in organic solvents Reason(R): Calcium chloride can form an addition compound with ethyl alcohol

Last Answer : Assertion (A): Ethyl alcohol is soluble in organic solvents Reason(R): Calcium chloride can form an addition ... is false D. A is false but R is true

Assertion : Nickel can be purified by Mond process. Reason : `Ni(CO)_(4)` is a volatile compound which deomposed at `460K` to give pure `Ni`.

Description : Assertion : Nickel can be purified by Mond process. Reason : `Ni(CO)_(4)` is a volatile compound which deomposed at `460K` to give pure `Ni`.

Last Answer : Assertion : Nickel can be purified by Mond process. Reason : `Ni(CO)_(4)` is a volatile compound which deomposed at `460K` to give pure `Ni`.

Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4  B. +2  C. -4

Description : Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4  B. +2  C. -4

Last Answer : Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4 B. +2 C. -4

Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 atm and `373K` is zero. Reason: For all isothermal

Description : Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 atm and `373K` is zero. Reason: For all isothermal

Last Answer : Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 ... . D. If both Assertion & Reason are false.

Assertion :- `Q_("Surr")` is zero for adiabatic process Reason :- Final state of the system remains unchanged in adiabatic process.

Description : Assertion :- `Q_("Surr")` is zero for adiabatic process Reason :- Final state of the system remains unchanged in adiabatic process.

Last Answer : Assertion :- `Q_("Surr")` is zero for adiabatic process Reason :- Final state of the system ... False. D. If both Assertion & Reason are false.

Assertion :- For an isolated system q is zero. Reason :- In an isolated system change in U and V is zero.

Description : Assertion :- For an isolated system q is zero. Reason :- In an isolated system change in U and V is zero.

Last Answer : Assertion :- For an isolated system q is zero. Reason :- In an isolated system change in U and V ... False. D. If both Assertion & Reason are false.

Assertion: The enthalpy of formation of gaseous oxygen molecules at `298K` and under1 atm is zero. Reason: The entropy of formation of gaseous oxygen

Description : Assertion: The enthalpy of formation of gaseous oxygen molecules at `298K` and under1 atm is zero. Reason: The entropy of formation of gaseous oxygen

Last Answer : Assertion: The enthalpy of formation of gaseous oxygen molecules at `298K` and under1 atm is zero. ... D. If both Assertion & Reason are false.

Assertion In non-uniform magnetic field speed of a charged particle varies. Reason Work done by magnetic force on a charged particle is always zero.

Description : Assertion In non-uniform magnetic field speed of a charged particle varies. Reason Work done by magnetic force on a charged particle is always zero.

Last Answer : Assertion In non-uniform magnetic field speed of a charged particle varies. Reason Work done by ... If Assertion is false but Reason is true.

Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` Aldosterone causes reabsorption of `Na^(o+)` and wate

Description : Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` Aldosterone causes reabsorption of `Na^(o+)` and wate

Last Answer : Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` ... D. If both Assertion & Reason are false.

Assertion `:-` Conditional reabsorption of `Na^(o+)` and water takes place in DCT. Reason `:-` DCT is also capacble of selective secretion of hydrogen

Description : Assertion `:-` Conditional reabsorption of `Na^(o+)` and water takes place in DCT. Reason `:-` DCT is also capacble of selective secretion of hydrogen

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Assertion :- Origin of virus like structure is an example of retrogressive evolution. Reason : "Descent with modificaltion" is a fundamental concept o

Description : Assertion :- Origin of virus like structure is an example of retrogressive evolution. Reason : "Descent with modificaltion" is a fundamental concept o

Last Answer : Assertion :- Origin of virus like structure is an example of retrogressive evolution. Reason : "Descent ... D. If both Assertion & Reason are false.

Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage to the stratospheric change. Reason (R): Ozone h

Description : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage to the stratospheric change. Reason (R): Ozone h

Last Answer : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage ... true but reason is wrong D. Both are wrong

Assertion :- At constant pressure for the change `H_(2)O(s)rarr H_(2)O(g)` work done is nwgative. Reason :- During phase transition work done is alway

Description : Assertion :- At constant pressure for the change `H_(2)O(s)rarr H_(2)O(g)` work done is nwgative. Reason :- During phase transition work done is alway

Last Answer : Assertion :- At constant pressure for the change `H_(2)O(s)rarr H_(2)O(g)` work done is ... is False. D. If both Assertion & Reason are false.

Assertion : The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood vessels . Reason : Rapid fall in the level o

Description : Assertion : The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood vessels . Reason : Rapid fall in the level o

Last Answer : Assertion : The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood ... D. If both Assertion & Reason are False.

Read the assertion and reason carefully to mark the correct option in question. 1. Assertion: Cell is the fundamental structural and functional unit o

Description : Read the assertion and reason carefully to mark the correct option in question. 1. Assertion: Cell is the fundamental structural and functional unit o

Last Answer : Read the assertion and reason carefully to mark the correct option in question. 1. Assertion: Cell is ... . D. If both Assertion & Reason are false.

Assertion : o-Hydrozybenaldehyde is less soluable in water than p-Hydroxybenzalbenzaldehye. Reason : Intra molecular hydrogen bonding in o-Hydrozbenza

Description : Assertion : o-Hydrozybenaldehyde is less soluable in water than p-Hydroxybenzalbenzaldehye. Reason : Intra molecular hydrogen bonding in o-Hydrozbenza

Last Answer : Assertion : o-Hydrozybenaldehyde is less soluable in water than p-Hydroxybenzalbenzaldehye. Reason : Intra ... D. Assertion is false, Reason is true

Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. Reason : Sulphonation of phenol is a reversible pr

Description : Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. Reason : Sulphonation of phenol is a reversible pr

Last Answer : Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. ... in correct D. A is incorrect but R is correct