The total number of electrons present in all the p-orbitals of bromine is
Options
(a) 18 (b) 5 (c) 35 (d) 17
Correct Answer:
35
Explanation:
No explanation available. Be the first to […]
Which is a metalloid
Options
(a) Arsenic (b) Oxygen (c) Phosphorus (d) Manganese
Correct Answer:
Arsenic
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Chloride ion and potassium ion are isoelectronic. Then
Options
(a) potassium ion is relatively bigger (b) depends on the other cation and anion (c) their sizes are same (d) chlorine ion is bigger […]
Smallest wavelength occurs for
Options
(a) Lyman series (b) Balmer series (c) Paschen series (d) Brackett series
Correct Answer:
Lyman series
Explanation:
No explanation available. Be the first to write the explanation for […]
An equation is given as:SnO₂ + C → Sn + CO.Its balanced form will involve
Options
(a) C and 2CO (b) C and 3CO (c) 2C and 2CO (d) 2C and CO
Correct […]
Which of the following compounds volatilises on heating
Options
(a) ZnCl₂ (b) HgCl₂ (c) MgCl₂ (d) None of these
Correct Answer:
HgCl₂
Explanation:
No explanation available. Be the first to write the explanation […]
Which of the following does not show electrical conduction
Options
(a) Diamond (b) Graphite (c) Potassium (d) Sodium
Correct Answer:
Diamond
Explanation:
Potassium and sodium are metals so have mobile electrons. In graphite, […]
Naphthalene is a
Options
(a) ionic solid (b) covalent solid (c) metallic solid (d) molecular solid
Correct Answer:
molecular solid
Explanation:
No explanation available. Be the first to write the explanation […]
The PSLV rocket used
Options
(a) only solid propellants (b) only monoliquid propellants (c) only bi-liquid propellants (d) both solid and bi-liquid propellants
Correct Answer:
both solid and bi-liquid propellants
Explanation:
No explanation […]
The waxes are long chain compounds of fatty acids, which belong to the class of
Options
(a) alcohols (b) ethers (c) esters (d) acetic acid
Correct Answer:
esters
Explanation:
No explanation available. Be […]
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