Democracy

Q. A system in which people select their representatives to exercise power is called _______.

1. representative democracy
2. presidential democracy
3. direct democracy
4. elite democracy

Q. Which type of government is chosen by the people?

1. Monarchy
2. Dictatorship
3. Democracy
4. Oligarchy

Q. Explain the difficulties faced by the people in a non-democratic country?

Q.

The graphite electrode is generally not preferred over other inert electrodes during the electrolysis of fused lead bromide.

1. True

2. False

Q. 0.2(M) solution of monobasic acid is dissociated to $0.95\%$ calculate its dissociation constant.
C = 0.2 M

1. $2\times {10}^{-4}$
2. $1.7\times {10}^{-5}$
3. $1.6\times {10}^{-4}$
4. $1.8\times {10}^{-5}$

Q. During electrolysis of fused lead bromide, __________ is deposited at the cathode.

1. lead
2. bromine
3. hydrogen
4. oxygen

Q. If ${\Lambda }_c$ for $N{H}_{4}OH$ is 11.5 $oh{m}^{-1}c{m}^{2}mo{l}^{-1}$, its degree of dissociation would be
(given that ${\lambda }^{\circ }N{H}_4^{+}$ = 73.4 and ${\lambda }^{\circ }O{H}^{-}$ = 197.6 $oh{m}^{-1}c{m}^{2}mo{l}^{-1}$ )

1. 0.0848
2. 0.0424
3. 0.0212
4. 0.004

Q. Which type of government is chosen by the people?

1. Monarchy
2. Dictatorship
3. Democracy
4. Oligarchy

Q.

An aqueous solution of $BaC{l}_2$ (1.28gm in 100gm of water)boils at ${100.0832}^{\circ }$ at 1 atm. Calculate the degree of dissociation. ( $K_b$ of water is 0.512 k/m)

1. 0.5

2. 0.85

3. 0.6

4. 0.75

Q.

A gaseous compound of molecular mass 82.1 dissociates on heating to 400K as : $X_2{Y}_{4\left(g\right)}\to X_{2\left(g\right)}+2Y_{2\left(g\right)}$. The density of the equilibrium mixture at a pressure of 1 atm and temperature of 400K is $2.0g{L}^{-1}$. The compound dissociates to the extent of :

1. 95.1%

2. 47.6%

3. 12.5%

4. None of these

Q. Which of the following countries have democratic governments?

1. India
2. Brazil
3. USA
4. Oman

Q.

How many electrons are lost by zinc during the process of oxidation?

1. 1

2. 2

3. 3

4. 4

Q.

When an aqueous solution of sodium sulphate is electrolysed, on cathode we get:

1. Na

2. H₂

3. SO₃

4. SO₂

Q.

When $0.004MN{a}_{2}S{O}_4$ is isotonic with 0.01M solution of glucose at same temperature.the apparent degree of dissociation of sodium sulphate is

1. 75%

2. 50%

3. 25%

4. 85%

Q. furnishes positive ions other than H3O+ ions and negative ions other than OH− in aqueous solution.

1. Alkali
2. Salt
3. Acid