Which of the following statements is true?
1. | NH3 is less soluble than PH3 in water |
2. | NH3 is a stronger base and stronger reducing agent than PH3 |
3. | NH3 has a higher boiling point than PH3 and has a lower melting point than PH3 |
4. | PH3 is a stronger reducing agent than NH3 and it has lower melting critical temperature than NH3 |
Which of the following on heating produces ?
(a) (b)
(c) (d)
Compound (A),(B) and (C) will be respectively :
(a) (b)
(c) (d)
Which of the following is in the correct sequence?
[For the correct order mark (T) and for the incorrect order mark (F)]:
(a) | Lewis acidity order | |
(b) | Melting point | |
(c) | Boiling point | |
(d) | Dipole moment order |
(a) | (b) | (c) | (d) | |
1. | F | T | F | T |
2. | T | F | T | F |
3. | F | F | T | T |
4. | F | F | T | F |
Incorrect statement regarding PH3 is:
1. It is produced by the hydrolysis of Ca3P2
2. It gives a black ppt, Cu3P2 with a CuSO4 solution.
3. It spontaneously burns in the presence of
4. It does not react with
Which of the following compound does not produce oxyacid of central atom on hydrolysis?
(1)
(2)
(3)
(4)
The false statement regarding hydrides from the 15th group is:
1. | NH3 > PH3 > AsH3 > SbH3 > BiH3 | Thermal stability |
2. | N-H > P-H > As-H > Sb-H > Bi-H | E-H bond dissociation enthalpy |
3. | NH3 > PH3 > AsH3 > SbH3 > BiH3 | Reducing character |
4. | NH3 > PH3 > AsH3 > SbH3 > BiH3 | Basicity |
A non-metal M forms but does not form . Then incorrect statement regarding non-metal M is:
(a) M can form multiple bond
(b) M is of second period element
(c) Atomicity of non-metal is 4
(d) The range of oxidation number for M is +5 to -3
The correct order of bond length in the following oxyanion is :
(I) (II) (III)
(a) IIIIII (b) IIIIII
(c) IIIIII (d) IIIIII
In which of the following reaction product does not contain 'Peroxy' linkage?
1.
2.
3.
4. None of these