Class 11 Chemistry Model Paper 1 MCQ Test

1. Plasma is the mixture of:

2. At constant Pressure what will be the change in temperature when the volume of a gas will become twice of what it is at 0°C?

3. Which of these samples of gas contains the same number of atoms as 1g of hydrogen molecule? (At. Mass C = 12, O = 16, H = 1, Ne = 20)

4. Diamond is a bad conductor of electricity because:

5. Which one of the following exists in the solid state as a giant covalent lattice?

6. pH of 1 × 10^-4 M solution of Phosphoric acid is:

7. Mixture containing 0.01 mole/300cm³ of NH₄Cl and 0.1 mole/400cm³ of NH₄OH having pKb = 5 has pH of:

8. The heat of neutralization of the given reaction is -57.3 kJ
NaOH + HCl → NaCl + H₂O
What is the heat of neutralization of the following reaction?
Fe(OH)₂ + 2HCl → FeCl₂ + 2H₂O

9. The electrode potential of metals are:
Mg²⁺ + 2e^- → Mg     E° = - 2.71 v
Ag →  Ag⁺ + 1e^-       E° = - 0.8 v
Cell potential (emf) of the cell formed by these two will be:

10. The gaseous element X exists in diatomic form. One volume of the element X combines with two volumes of hydrogen to form two volumes of gaseous hydride. What is the formula of hydride of X?

11. The rate equation for a reaction  2A→ product  is Rate = K [A]². Unit of specific rate constant for this reaction is:

12. Splitting of spectral lines by placing the excited atom in electric field is called:

13. A substance which itself is not a catalyst but increases the activity of a catalyst is called:

14. 5g of urea (M.wt = 60) is dissolved in 250 cm³ of its solution. Concentration of solution will be:

15. The number of bonds in one molecule of Nitrogen is:

16. In which substance does nitrogen exhibit the highest oxidation state?

17. In the ground state of an atom, the electron is present: