Nitric Oxide

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A metal A, which is used in the thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH

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Metal oxides react with non-metal oxide to form a salts. Explain with example of a balanced chemical reaction.

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illustrate how copper metal can give different products on reaction with $H N O_{3}$ .

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Q. In the Oswald process, Ammonia is catalytically oxidized to :

Nitric oxide
Nitric acid
Sulfuric acid
Oleum

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Q. Which oxide is alkaline in nature?

$P_{2} O_{3}$
$B i_{2} O_{3}$
$N_{2} O_{3}$
$A s_{2} O_{3}$

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On heating blue coloured powder of copper(II) nitrate in a boiling tube copper oxide (black), oxygen gas and a brown gas X is formed. What could be the pH range of aqueous solution of the gas X ?

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Q. Match the following:
Oxide Nature
(a)

S O_{3}

(i) Basic
(b)

A s_{2} O_{3}

(ii) Neutral
(c)

C a O

(iii) Acidic
(d)

N_{2} O

(iv) Amphoteric

Which of the following is correct option ?

a-iii, b-i, c-iv, d-ii
a-iii, b-iv, c-i, d-ii
a-iv, b-i, c-ii, d-iii
a-i, b-ii, c-iii, d-iv

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Q. Which of the following compounds does not give nitrogen on heating?

$N a N_{3}$
$(N H_{4})_{2} S O_{4}$
$N H_{4} N O_{2}$
$(N H_{4})_{2} C r_{2} O_{7}$ .

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6. Name a yellow-colored oxide that is insoluble in dilute sulphuric acid.

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What is (are) true about $N O$ and $C l O_{2}$ ?

Both molecules have fractional bond order.
Both molecules are acidic in nature.
Both have odd electron bond in their structures.
Both are paramagnetic in nature.

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What is (are) true about $N O$ and $C l O_{2}$ ?

Both molecules have fractional bond order.
Both molecules are acidic in nature.
Both have odd electron bond in their structures.
Both are paramagnetic in nature.

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Q. At what temperature will hydrogen molecules have the same

K E

as nitrogen molecules at

280 K

$280 K$
$50 K$
$400 K$
$40 K$

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Q. Which one of the following is a strong reducing agent?

Ethanoic acid
Chloroacetic acid
Benzoic acid
Methanoic acid

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Q. Assertion :Catenation tendency is weaker in nitrogen. Reason: Nitrogen exists as diatomic gas.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion is correct but Reason is incorrect
Both Assertion and Reason are incorrect

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H_{2} S

is used as laboratory reagent because sulphides are highly ______ .

insoluble
soluble
volatile
separable

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Q. Consider the reaction

C_{3} H_{7} O H + C H_{2} - N_{2} (D i a z o m e t h a n e) H B F_{4} - -- \to

The leaving group is:

$B F_{4} ⊝$
$N_{2}$
$C_{3} H_{7} O^{⊝}$
$C H_{2}^{⊝}$

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Q. Which is soluble in

N a N O_{2}

and dil.

H C l

mixture and forming salt?

$(C H_{3})_{2} C N H_{2}$
$(C H_{3})_{2} C H N H_{2}$
$(C H_{3})_{2} N H$
$(C H_{3})_{3} N$

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Q. Which of the following options is/ are correct?

$P O F_{3} > P O C l_{3} > P O B r_{3} > P O I_{3} (P - O Bond length)$
$H_{2} O < C H_{3} O H < C H_{3} O C H_{3} (Bond angle)$
$F_{2} > C l_{2} > B r_{2} > I_{2} (Oxidising property)$
$X e > K r > A r > N e > H e (Solubility in water)$

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What is (are) true about $N O$ and $C l O_{2}$ ?

Both molecules have fractional bond order.
Both molecules are acidic in nature.
Both have odd electron bond in their structures.
Both are paramagnetic in nature.

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Q. The option(s) with only amphoteric oxides is (are)

$N O, B_{2} O_{3}, P b O, S n O_{2}$
$C r_{2} O_{3}, C r O, S n O, P b O$
$C r_{2} O_{3}, B e O, S n O, S n O_{2}$
$Z n O, A l_{2} O_{3}, P b O, P b O_{2}$

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Q. Assertion :Dumas method is more applicable to nitrogen-containing organic, compounds than Kjeldahl's method Reason: Kjeldahl's method does not give satisfactory results for compounds in which N is linked to O atom

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion is correct but Reason is incorrect
Both Assertion and Reason are incorrect

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Q. Which of the following is Rinmann's green?

$Z n O \cdot C a O$
$Z n O$
$Z n S + B a S O_{4}$
$Z n S O_{4} \cdot 7 H_{2} O$

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Q. When sodium reacts diliute

H_{2} S O_{4}

, the gas released is identified by :

all of above
odorless gas
brisk effervscence
pop sound near burning splint

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Q. In the Oswald process, Ammonia is catalytically oxidized to :

Nitric acid
Nitric oxide
Sulfuric acid
Oleum

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Q. In gaseous reactions important for the understanding of the upper atmosphere

H_{2} O

and O react to form two OH radicals.

Δ H

for this reaction is 72 kJ at 500 K and

E_{a}

77 k J . m o l^{- 1}

, then

E_{a}

for the bimolecular recombination of two OH radicals to form

H_{2} O

and O is:

$3 k J . m o l^{- 1}$
$4 k J . m o l^{- 1}$
$5 k J . m o l^{- 1}$
$7 k J . m o l^{- 1}$

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Q. The percentage of nitrogen in urea is:

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Q. Match the following

	oxide		Nature
(a)	CO	(i)	Basic
(b)	BaO	(ii)	Neutral
(c)	$A l_{2} O_{3}$	(iii)	Acidic
(d)	$C l_{2} O_{7}$	(iv)	Amphoteric

Which of the following is correct option ?

(iii) (iv) (i) (ii)
(ii) (i) (iv) (iii)
(i) (ii) (iii) (iv)
(iv) (iii) (ii) (i)

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Q. Which among the following is consumed by humans in the elemental form ?

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Q. Which of the following oxide is the most acidic?

$P_{2} O_{3}$
$A s_{2} O_{3}$
$S b_{2} O_{3}$
$B i_{2} O_{3}$

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Q. "Borax or microcosmic salt can be used to identify coloured cations."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

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