MCQ
Tollen's reagent is
- ✓$[Ag(NH_3)_2]^+$
- B$Ag_2O$
- C$Cu_2O$
- D$[Cu(OH)_4]^{-2}$
✓
Answer
Correct option: A.
$[Ag(NH_3)_2]^+$
a
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A circuit contains an ammeter, a battery of $30\,V$ and a resistance $40.8\, ohm$ all connected in series. If the ammeter has a coil of resistance $480\,ohm$ and a shunt of $20\,ohm$, the reading in the ammeter will be .................. $A$
→A Hydrogen atom and a $L{i^{ + + }}$ ion are both in the second excited state. If ${l_H}$ and ${l_{Li}}$ are their respective electronic angular momenta, and ${E_H}$ and ${E_{Li}}$ their respective energies, then
→The unit of length, velocity and force are doubled. Which of the following is the correct change in the other units?
Water falls from a height of $60\, m$ at the rate of $15 kg/s$ to operate a turbine. The losses due to frictional forces are $10\%$ of energy. How much power is generated by the turbine ............. $\mathrm{kW}$ ? $\, (g = 10 \,m/s^2)$
→With rise in temperature, the Young's modulus of elasticity
Which of the following plots may represent the reactance of a series $LC$ combination
→In the absence of external torque for a body revolving about any axis the quantity that remains constant is
If a bomb is thrown at a certain angle with the horizontal and after exploding on the way the different fragments move in different directions then the centre of mass
For a given circuit output voltage across load Resistance will be
If pressure of a gas contained in a closed vessel is increased by $0.4\%$ when heated by $1°C,$ the initial temperature must be
→