Q. No.Which of the following compounds are readily soluble in water?
a.
b.
c.
d.
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
When zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?
a. ions
b. ions
c. ions
d. ions
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Identify the correct formula of halides of alkaline earth metals from the following.
1.
2.
3.
4.
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)
Choose the correct statements from the following.
| a | Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal |
| b. | Beryllium sulphate is readily soluble in water as the greater hydration enthalpy of Be2+ overcomes the lattice enthalpy factor |
| c | Beryllium exhibits coordination number more than four |
| d | Beryllium oxide is purely acidic in nature |
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Which of the following are the correct reasons for the anomalous behavior of lithium?
a. Exceptionally small size of its atom
b. Its high polarising power
c. It has high degree of hydration
d. Exceptionally low ionisation enthalpy
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Match the elements given in Column I with the properties mentioned in Column II.
|
Column I |
Column II |
|
A. Li |
1. Insoluble sulphate |
|
B. Ca |
2. Strongest monoacidic base |
|
C. Na |
3. Most negative value among alkali metals |
|
D. Ba |
4. Insoluble oxalate |
Codes
| Options: | A | B | C | D |
| 1. | 3 | 2 | 4 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 3 | 4 | 2 | 1 |
Match the compounds given in Column I with their uses mentioned in Column II.
|
Column I |
Column II |
|
A. CaCO3 |
1. Dentistry, ornamental work |
|
B. Ca(OH)2 |
2. Manufacture of sodium carbonate from caustic soda |
|
C. CaO |
3. Manufacture of high-quality papers |
|
D. CaSO4 |
4. Used in whitewashing |
Codes
| Options: | A | B | C | D |
| 1. | 3 | 4 | 2 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 3 | 2 |
Match the elements given in Column I with the color they impart to the flame given in Column II.
|
Column I |
Column II |
|
A. Cs |
1. Apple green |
|
B. Sr |
2. Blue |
|
C. Ba |
3. Brick red |
|
D. Ca |
4. Crimson red |
Codes
| Options: | A | B | C | D |
| 1. | 1 | 4 | 2 | 3 |
| 2. | 2 | 4 | 1 | 3 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 3 | 2 |
Given below are two statements:
| Assertion (A): | The carbonate of lithium decomposes easily on heating to form lithium oxide and CO2. |
| Reason (R): | Lithium being very small in size polarises large carbonate ions leading to the formation of more stable Li2O and CO2. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Given below are two statements:
| Assertion (A): | Beryllium carbonate is kept in the atmosphere of carbon dioxide. |
| Reason (R): | Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
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