Copper on heating with concentrated HNO3 produces:

1. Cu(NO3)2 and NO       

2. Cu(NO3)2, NO and NO2

3. Cu(NO3)2 and N2O       

4. Cu(NO3)2 and NO2

Subtopic:  Group 15 - Preparation, Properties & Uses |
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NEET - 2016
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Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option.

Column I     Column II
A. XeF6        1. Distorted octahedral
B. XeO      2. Square planar
C. XeOF    3. Pyramidal
D. XeF4       4. Square pyramidal

Codes
A B C D
(a) 1 2 4 3
(b) 4 3 1 2
(c) 4 1 2 3
(d) 1 3 4 2

Subtopic:  Group 18 - Preparation, Properties & Uses |
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NEET - 2019
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The correct statement about given acids is:

1. Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid.
2. Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid.
3. Both are triprotic acids.
4. Both are diprotic acids.

Subtopic:  Group 15 - Preparation, Properties & Uses |
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NEET - 2016
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The product obtained as a result of a reaction of nitrogen with CaC2 is:

1. CaCN         

2. CaCN3

3. Ca2CN       

4. CaCN2

Subtopic:  Group 15 - Preparation, Properties & Uses |
 62%
NEET - 2016
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Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is

shown by one of these compounds. but not by the other?

1. Forms acid-rain

2. Is a reducing agent

3. Is soluble in water

4. ls used as a food-preservative

Subtopic:  Group 15 - Preparation, Properties & Uses |
 51%
NEET - 2015
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The maximum bond angle at nitrogen is present in which of the following?

1. NO2

2. NO2-

3. NO2+

4. NO3-

Subtopic:  Group 15 - Preparation, Properties & Uses |
 59%
NEET - 2015
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Which of the statements given below is incorrect?

1. Cl2O7 is an anhydride of perchloric acid

2. O3 molecule is bent

3. ONF is isoelectronic with Anionic NO2

4. OF2 is an oxide of fluorine

Subtopic:  Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses |
 54%
NEET - 2015
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The variation of the boiling point of the hydrogen halides is in the order HF > HI > HBr >

HCl. What explains the higher boiling point of hydrogen fluoride?

1. The electronegativity of fluorine is much higher than for other elements in the group

2. There is strong hydrogen bonding between HF molecules

3. The bond energy ol HF molecules is greater than in other hydrogen halides

4. The effect of nuclear shielding is much reduced in fluorine which polarises the HF

molecule

Subtopic:  Group 17 - Preparation, Properties & Uses |
 80%
From NCERT
NEET - 2015
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Strong reducing behaviour of H3PO2 is due to -

1. Presence of one-OH group and two P-H bonds

2. High electron gain enthalpy of phosphorus

3. High oxidation state of phosphorus

4. Presence of two-OH groups and one P-H bond

Subtopic:  Group 15 - Preparation, Properties & Uses |
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From NCERT
NEET - 2015
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Roasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic acts as a reducing agent and its acid has never been isolated. The gas X is

1. H2S

2. SO2

3. CO2

4. SO3

Subtopic:  Group 16 - Preparation, Properties & Uses |
 82%
NEET - 2013
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