S-Block Elements Group 1 and 2-Preparation and Properties (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 6 of 9
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1224 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
How to register?
Question number: 1
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
Question
In the following reaction, , What is A?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. |
|
|
| d. |
|
|
Question number: 2
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
Question
Which of the following sodium compound will give phosphine gas when reacted with yellow phosphorus?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. |
|
|
| d. |
|
|
Question number: 3
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Carbonate
Question
Magnesium chloride exists as MgCl 2. 6H 2 O, but sodium chloride exists as . Why?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | hydration energies of alkaline earth metals are higher |
|
| b. | Because of + 2 oxidation state. |
|
| c. | alkaline earth metals are more electropositive |
|
| d. | lower hydration energies of alkaline earth metals |
|
Question number: 4
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
Question
Write down the increasing order of melting points of alkali metals?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. |
|
|
| d. |
|
|
Question number: 5
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
Question
What will the product when dry ammonia is passed over sodium at 400 0 C in absence of air?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. |
|
|
| d. |
|
|
Question number: 6
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
Question
Which of the following is true about sodium?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | NaOH solution does not react with chlorine. |
|
| b. | Manganous hydroxide is soluble in excess of NaOH solution. |
|
| c. | NaOH is primary standard in volumetric analysis |
|
| d. | NaOH is used in concentration of bauxite ore |
|