This radical can be identified by Borax bead test is
Options
(a) Mg²⁺ (b) Ca²⁺ (c) Cu⁺ (d) Cu²⁺
Correct Answer:
Cu²⁺
Explanation:
No explanation available. Be the first to write the explanation […]
dsp² hybridisation is found in
Options
(a) [NiCl₄]²⁻ (b) [CoCl₄]²⁻ (c) [CuCl₄]³⁻ (d) [CuCl₄]²⁻
Correct Answer:
[CoCl₄]²⁻
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
The temperature above which a gas cannot be liquefied is called as
Options
(a) inversion temperature (b) critical temperature (c) neutral temperature (d) Curie point
Correct Answer:
critical temperature
Explanation:
Critical temperature […]
At 25⁰C the pH value of a solution is 6, then the solution is
Options
(a) acidic (b) neutral (c) basic (d) alkaline
Correct Answer:
acidic
Explanation:
No explanation available. Be the first […]
If 1 litre of N₂ is mixed with 2 litre of O₂, quantity explaining it is
Options
(a) Kinetic energy (b) partial pressure (c) rate of diffusion (d) none of these
Correct Answer: […]
Metallic crystalline solids have
Options
(a) low melting and boiling point (b) are bad conductors (c) are good conductors of heat and electricity (d) only conduct heat
Correct Answer:
are good conductors of […]
Sodium thiosulphate is added in photography to
Options
(a) improve colour of photograph (b) remove unreacted AgBr (c) form latent image (d) to form a better picture
Correct Answer:
remove unreacted AgBr
Molten NaCl results in conduction because of
Options
(a) free electrons (b) ions (c) molecules (d) anions
Correct Answer:
ions
Explanation:
No explanation available. Be the first to write the explanation for this […]
High ionisation energy indicates that
Options
(a) atom size is large (b) atom size is small (c) atom is metallic (d) valence electrons are held tightly by the atom
Correct Answer:
atom size […]
Pressure is measured by
Options
(a) barometer (b) anemometer (c) hygrometer (d) voltameter
Correct Answer:
barometer
Explanation:
Barometer is an instrument used to measure the pressure.
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