Which one of the following reactions does not come under hydrolysis type reaction?
| 1. | \(\mathrm{S i C l_{4 \left( l \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow S i O_{2 \left( s \right)} + 4 H C l_{\left( a q \right)}}\) |
| 2. | \(\mathrm{L i_{3} N_{\left( s \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow N H_{3 \left( g \right)} + 3 L i O H_{\left( a q \right)}}\) |
| 3. | \(\mathrm{2 F_{2 \left( g \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow 4 H F_{\left( a q \right)} + O_{2 \left( g \right)}}\) |
| 4. | \(\mathrm{P_{4} O_{10 \left( s \right)} + 6 H_{2} O_{\left( l \right)} \rightarrow 4 H_{3} P O_{4 \left( a q \right)}}\) |
A compounds that can show both, Frenkel as well as Schottky defects is -
1. AgBr
2. AgI
3. NaCl
4. ZnS
One mole of carbon atoms has a mass of 12 g. Determine the number of atoms present in this sample:
(Given: Mass of \(C^{12}\) is )
| 1. | 2. | ||
| 3. | 4. |
Isotonic solutions have the same:
1. Vapour pressure
2. Freezing temperature
3. Osmotic pressure
4. Boiling temperature
What is the molarity of the standard solution if the solubility product for a salt of type AB is ?
1.
2.
3.
4.
1. Ultraviolet rays
2. \(X\)-rays
3. Gamma-rays
4. Microwaves
The angular speed of the wheel of a vehicle is increased from \(360~\text{rpm}\) to \(1200~\text{rpm}\) in \(14\) seconds. Its angular acceleration will be:
1. \(2\pi ~\text{rad/s}^2\)
2. \(28\pi ~\text{rad/s}^2\)
3. \(120\pi ~\text{rad/s}^2\)
4. \(1 ~\text{rad/s}^2\)
What happens to the mass number and the atomic number of an element when it emits \(\gamma\text{-}\)radiation?
| 1. | mass number decreases by four and atomic number decreases by two. |
| 2. | mass number and atomic number remain unchanged. |
| 3. | mass number remains unchanged while the atomic number decreases by one. |
| 4. | mass number increases by four and the atomic number increases by two. |
1. \(2.91 \times 10^{-4}~\text{rad} \)
2. \(4.85 \times 10^{-4}~\text{rad} \)
3. \(4.80 \times 10^{-6} ~\text{rad} \)
4. \(1.75 \times 10^{-2}~\text{rad} \)
| 1. | \(33\) V | 2. | \(43\) V |
| 3. | \(108\) V | 4. | \(10\) V |
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