P Block Elements Chemistry NEET Practice Questions
1 / 47
Which of the following substances is used in the laboratory for fast-drying neutral gases?
2 / 47
When orthophosphoric acid is heated to 600°C, the product formed is
3 / 47
Basicity of orthophosphoric acid is
4 / 47
Which is the correct statement for the given acids?
5 / 47
Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because
6 / 47
Which of the following fluorides does not exist?
7 / 47
PCl3 reacts with water to form
8 / 47
Among the following oxides, the lowest acidic is
9 / 47
Nitrogen forms N2, but phosphorus does not form P2, however, it converts P4, reason is
10 / 47
Oxygen will directly react with each of the following elements except
11 / 47
Which of the following statements is not valid for oxoacids of phosphorus?
12 / 47
When copper is heated with conc. HNO3 it produces
13 / 47
P2O5 is heated with water to give
14 / 47
Which one has the lowest boiling point?
15 / 47
Strong reducing behavior of H3PO2 is due to
16 / 47
Aqueous solution of ammonia consists of
17 / 47
Pure nitrogen is prepared in the laboratory by heating a mixture of
18 / 47
Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po) ?
19 / 47
Which of the following is a Nitric Acid anhydride?
20 / 47
Sugarcane on reaction with nitric acid gives
21 / 47
Which of the following oxides of nitrogen is paramagnetic?
22 / 47
Nitrogen is a relatively inactive element because
23 / 47
Number of electrons shared in the formation of nitrogen molecule is
24 / 47
Which of the following does not give oxygen on heating?
25 / 47
Which of the following bonds has the highest energy?
26 / 47
H3PO2 is the molecular formula of an acid of phosphorus. Its name and basicity respectively are
27 / 47
28 / 47
The basic character of hydrides of the group V elements decreases in the order
29 / 47
Which would quickly absorb oxygen?
30 / 47
It is possible to obtain oxygen from air by fractional distillation because
31 / 47
How many bridging oxygen atoms are present in P4O10?
32 / 47
33 / 47
Which of the following statement is not correct for nitrogen?
34 / 47
Which of the following oxoacids of phosphorus has strongest reducing property?
(d) H3PO4
35 / 47
A compound ‘X’ upon reaction with H2O produces a colorless gas ‘Y’ with a rotten fish smell. Gas ‘Y’ is absorbed in a solution of CuSO4 to give Cu3P2 as one of the products. Predict the compound ‘X’.
36 / 47
Urea reacts with water to form A which will decompose to form B. B when passed through Cu2+ (aq), deep blue colour solution C is formed. What is the formula of C from the following?
37 / 47
Acidity of diprotic acids in aqueous solutions increases in the order
38 / 47
Each of the following is true for white and red phosphorus except that they
39 / 47
. Which of the following oxides is most acidic?
40 / 47
Oxidation states of P in H4P2O5, H4P2O6, H4P2O7 are respectively
41 / 47
Which of the following phosphorus is the most reactive?
42 / 47
Which of the following has the highest dipole moment?
43 / 47
44 / 47
In which of the following compounds, nitrogen exhibits highest oxidation state?
45 / 47
Identify the incorrect statement related to PCl5 from the following:
46 / 47
PH4I + NaOH forms
47 / 47
Your score is
The average score is 36%
Restart quiz
Unlock the doors to success with a premier chemistry academy. Explore our top-notch education, experienced instructors, and a bright future in chemistry.