MCQ
Select the correct statement
- APhotography is based upon photosensitivity of silver halide mainly $AgBr$
- BSodium thiosulphate is used to remove the unexposed $AgBr$ from photographic film
- C$AuCl_3$ is used in toning
- ✓All are correct
✓
Answer
Correct option: D.
All are correct
d
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
Which of the following expression is true regarding formation of $PCl_{5(g)}.$
→$PC{l_{3(g)}}\, + \,C{l_2}(g)\, \rightleftharpoons \,PC{l_{5(g)}}$
What is the order of reaction' for $A + B \to C$
→| Observation | $[A]$ | $[B]$ | Rate of reaction |
| $1$ | $0.1$ | $0.1$ | $2\times10^{-3}\, mol\, L^{-1}\,sec^{-1}$ |
| $2$ | $0.2$ | $0.1$ | $0.4\times10^{-2}\, mol\, L^{-1}\,sec^{-1}$ |
| $3$ | $0.1$ | $0.2$ | $1.4\times10^{-2}\, mol\, L^{-1}\,sec^{-1}$ |
Diazo-coupling is useful to prepare some
Assertion : Cuprous ion $(Cu^+)$ has unpaired electrons while cupric ion $(Cu^{++})$ does not.
Reason : Cuprous ion $(Cu^+)$ is colourless whereas cupric ion $(Cu^{++})$ is blue in the aqueous solution.
→Reason : Cuprous ion $(Cu^+)$ is colourless whereas cupric ion $(Cu^{++})$ is blue in the aqueous solution.
It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power ' $n$ ' i.e. $v^{ n }$ of X-rays emitted is plotted against atomic number ' $Z$ ', following graph is obtained. The value of ' $n$ ' is
→major product is ?
Magnetic moment of ${[Cu{(N{H_3})_4}]^{2 + }}$ion is
→The change in optical rotation with the time of freshly prepared solution of sugar is known as
Benzyl isocyanide can be obtained by:
Choose the correct answer from the options given below:
Which one of the following molecules does not show stereo isomerism?