In the brown ring test for the nitrate ion, the brown colour is due to
In the brown ring test for the nitrate ion, the brown colour is due to Options (a) [Fe(H₂O)₅NO]²⁺ (b) [Fe(H₂O)₅NO]³⁺…
7 years ago
KL2004
Which of the following sulphides when heated strongly in air gives the corres
Which of the following sulphides when heated strongly in air gives the corresponding metal Options (a) Cu₂S (b) CuS (c)…
7 years ago
Restriction endonuclease is employed for cutting
Restriction endonuclease is employed for cutting Options (a) A single stranded DNA (b) Double stranded DNA (c) RNA fragment (d)…
7 years ago
The reaction of an ester RCOOR’ with an alcohol R”OH in the presence of an acid
The reaction of an ester RCOOR' with an alcohol R''OH in the presence of an acid gives Options (a) RCOOH…
7 years ago
In an NPN transistor the collector current is 24 mA. If 80% of the electrons
In an NPN transistor the collector current is 24 mA. If 80% of the electrons reach collector, its base current…
7 years ago
Complete the reaction: ₀n¹+ ₉₂U²³⁵→₅₆Ba¹⁴⁴+……..+3n
Complete the reaction: ₀n¹+ ₉₂U²³⁵→₅₆Ba¹⁴⁴+........+3n Options (a) ₃₆Kr⁸⁹ (b) ₃₆Kr⁹⁰ (c) ₃₆Kr⁹³ (d) ₃₆Kr⁹² Correct Answer: ₃₆Kr⁸⁹ Explanation: A' of…
7 years ago
If the ionisation energy for the hydrogen atom is 13.6 eV, the energy required
If the ionisation energy for the hydrogen atom is 13.6 eV, the energy required to excite it from the ground…
7 years ago
Suppose for some reasons, radius of earth were to shrink by 1% of present value,
Suppose for some reasons, radius of earth were to shrink by 1% of present value, mass remaining same, then g(acceleration…
7 years ago
A sound source is moving towards a stationary listener with 1/10th of the speed
A sound source is moving towards a stationary listener with 1/10th of the speed of sound. The ratio of apparent…
7 years ago
A carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
A carnot engine working between 300 K and 600 K has a work output of 800J per cycle. The amount…
7 years ago