Identify the pair of hydrides which have polymeric structure:
Show Hint
- LiH, NaH
- BeH\(_2\), MgH\(_2\)
- NH\(_3\), CH\(_4\)
B\(_2\)H\(_6\), H\(_2\)O
The Correct Option is B
Solution and Explanation
Both BeH\(_2\) and MgH\(_2\) are known to form polymeric structures. BeH\(_2\) can adopt a linear polymeric structure due to bridging hydrogen atoms, while MgH\(_2\) forms polymeric networks in its crystal lattice.
Top Questions on Law Of Chemical Equilibrium And Equilibrium Constant
- Identify the reaction for which \( K_p = K_c \):
- TS EAMCET - 2024
- Chemistry
- Law Of Chemical Equilibrium And Equilibrium Constant
- At 300 K, for the reaction, \[ \text{A}_2 \text{B}_2(g) \rightleftharpoons \text{A}_2(g) + \text{B}_2(g) \]
\(\text{is 100 mol L}^{-1}\). \(\text{What is its } K_p \text{(in atm)} \text{at the same temperature?} \)
\(\text{(R = 0.082 L atm mol}^{-1}\) \(\text{K}^{-1}) \)- AP EAMCET - 2024
- Chemistry
- Law Of Chemical Equilibrium And Equilibrium Constant
- At 27°C, the degree of dissociation of HA (weak acid) in 0.5 M of its solution is 1%. The concentrations of H\(_3\)O\(^+\), A\(^-\), and HA at equilibrium (in mol L\(^{-1}\)) are respectively:
- AP EAMCET - 2024
- Chemistry
- Law Of Chemical Equilibrium And Equilibrium Constant
- For the reaction at \( T(K) \), \( A_2(g) \rightleftharpoons B_2(g) \), \( K_c \) for the reaction at \( T(K) \) is 39.0. In a closed 1L flask, one mole of \( A_2(g) \) was heated to \( T(K) \). What is the concentration of \( B_2(g) \) at equilibrium (in mol L\(^{-1}\))?
- TS EAMCET - 2024
- Chemistry
- Law Of Chemical Equilibrium And Equilibrium Constant
- At T(K), \(K_c\) for the reaction AO\(_2\)(g) + BO\(_2\)(g) \(\rightleftharpoons\) AO\(_3\)(g) + BO(g) is 16. One mole each of reactants and products are taken in a 1L flask and heated to T(K), and equilibrium is established. What is the equilibrium concentration of BO (in mol L\(^{-1}\))?
- TS EAMCET - 2024
- Chemistry
- Law Of Chemical Equilibrium And Equilibrium Constant
Questions Asked in TS EAMCET exam
A constant force of \[ \mathbf{F} = (8\hat{i} - 2\hat{j} + 6\hat{k}) \text{ N} \] acts on a body of mass 2 kg, displacing it from \[ \mathbf{r_1} = (2\hat{i} + 3\hat{j} - 4\hat{k}) \text{ m to } \mathbf{r_2} = (4\hat{i} - 3\hat{j} + 6\hat{k}) \text{ m}. \] The work done in the process is:
- TS EAMCET - 2024
- work, energy and power
A ball 'A' of mass 1.2 kg moving with a velocity of 8.4 m/s makes a one-dimensional elastic collision with a ball 'B' of mass 3.6 kg at rest. The percentage of kinetic energy transferred by ball 'A' to ball 'B' is:
- TS EAMCET - 2024
- work, energy and power
A metre scale is balanced on a knife edge at its centre. When two coins, each of mass 9 g, are kept one above the other at the 10 cm mark, the scale is found to be balanced at 35 cm. The mass of the metre scale is:
- TS EAMCET - 2024
- work, energy and power
A body of mass \( m \) and radius \( r \) rolling horizontally with velocity \( V \), rolls up an inclined plane to a vertical height \( \frac{V^2}{g} \). The body is:
- TS EAMCET - 2024
- work, energy and power
- An object of mass \( m \) at a distance of \( 20R \) from the center of a planet of mass \( M \) and radius \( R \) has an initial velocity \( u \). The velocity with which the object hits the surface of the planet is: (G - Universal gravitational constant) \vspace{0.5cm}
- TS EAMCET - 2024
- laws of motion