---
title: Which of the following statements most accurately characterises the… — Separating mixtures · tree and pragmatics
description: Which of the following statements most accurately characterises the recovery of salt from a solution of salt in water? Exam question 1 of lesson 8 «Separating mixtures» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova'
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/e1/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / [Separating mixtures](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/) / e1

# Exam question 1 · Separating mixtures

<!-- .ven lang=en -->
Which of the following statements most accurately characterises the recovery of salt from a solution of salt in water?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** salt · **What happens:** follow, characteris, recover · **To what, where:** recovery, solution

<!-- .vabout -->
This is exam question 1 of lesson 8 «Separating mixtures» of the chemistry course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/8-separating-mixtures/#e1).

## The question {#question}

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e1:1
# text = Which of the following statements most accurately characterises the recovery of salt from a solution of salt in water?
1	Which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
2	of	of	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	following	follow	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	statements	statement	NOUN	NNS	Number=Plur	8	obl	_	_
6	most	most	ADV	RBS	Degree=Sup	7	advmod	_	_
7	accurately	accurately	ADV	RB	_	8	advmod	_	_
8	characterises	characteris	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	recovery	recovery	NOUN	NN	Number=Sing	8	obj	_	_
11	of	of	ADP	IN	_	12	case	_	_
12	salt	salt	NOUN	NN	Number=Sing	10	nmod	_	_
13	from	from	ADP	IN	_	15	case	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
15	solution	solution	NOUN	NN	Number=Sing	8	obl	_	_
16	of	of	ADP	IN	_	17	case	_	_
17	salt	salt	NOUN	NN	Number=Sing	15	nmod	_	_
18	in	in	ADP	IN	_	19	case	_	_
19	water	water	NOUN	NN	Number=Sing	17	nmod	_	SpaceAfter=No
20	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **characteris** | present |  | the recovery of salt |  | a solution of salt in water |  | of the following statements; accurately *property* | tree rules |
| 3 | **recover** |  | salt |  |  |  |  |  | nom recovery «event intransitive»: of=agent |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
The solution is left to stand until the salt floats

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e1:o1:1
# text = The solution is left to stand until the salt floats
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	solution	solution	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	left	leave	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	stand	stand	VERB	VB	VerbForm=Inf	4	xcomp	_	_
7	until	until	SCONJ	IN	_	10	mark	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	salt	salt	NOUN	NN	Number=Sing	10	nsubj	_	_
10	floats	float	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **leave** | present · passive |  | the solution |  |  |  |  | tree rules |
| 2 | **stand** | to-infinitive | the solution *not said here* |  |  |  |  |  | vn assuming\_position-50 «NP V»: agent=Agent |
| 3 | **float** | present | the salt |  |  |  |  |  | vn run-51.3.2-2 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
A magnet is applied to the solution to extract the salt

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e1:o2:1
# text = A magnet is applied to the solution to extract the salt
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	magnet	magnet	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	applied	apply	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	to	to	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	solution	solution	NOUN	NN	Number=Sing	4	obl	_	_
8	to	to	PART	TO	_	9	mark	_	_
9	extract	extract	VERB	VB	VerbForm=Inf	4	advcl	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	salt	salt	NOUN	NN	Number=Sing	9	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **apply** | present · passive |  | a magnet |  |  |  | to the solution | vn use-105.1 «NP V NP»: subject=Theme |
| 2 | **extract** | to-infinitive |  | the salt |  |  |  |  | vn remove-10.1 «NP V NP»: agent=Agent salt=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
The solution is passed through filter paper, which retains the salt

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e1:o3:1
# text = The solution is passed through filter paper, which retains the salt
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	solution	solution	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	passed	pass	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	through	through	ADP	IN	_	7	case	_	_
6	filter	filter	NOUN	NN	Number=Sing	7	compound	_	_
7	paper	paper	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	10	punct	_	_
9	which	which	PRON	WDT	PronType=Rel	10	nsubj	_	_
10	retains	retain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	salt	salt	NOUN	NN	Number=Sing	10	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pass** | present · passive |  | the solution |  | filter paper |  |  | vn throw-17.1-1 «NP V NP PP.destinations»: subject=Theme through paper=Destination |
| 2 | **retain** | present | filter paper | the salt |  |  |  |  | tree rules |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
The water is permitted to evaporate, the salt remaining as crystals

```conllu
# sent_id = question:chemistry:8-separating-mixtures:e1:o4:1
# text = The water is permitted to evaporate, the salt remaining as crystals
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	water	water	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	permitted	permit	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	evaporate	evaporate	VERB	VB	VerbForm=Inf	4	xcomp	_	SpaceAfter=No
7	,	,	PUNCT	,	_	9	punct	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	salt	salt	NOUN	NN	Number=Sing	4	obl	_	_
10	remaining	remain	VERB	VBG	VerbForm=Ger	9	acl	_	_
11	as	as	ADP	IN	_	12	case	_	_
12	crystals	crystal	NOUN	NNS	Number=Plur	10	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **permit** | present · passive |  | the water |  |  |  | the salt *obl* | vn allow-64.1-1 «NP V NP S»: subject=Beneficiary clause=Eventuality |
| 2 | **evaporate** *not said to happen* | to-infinitive |  |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 3 | **remain** | gerund | the salt *not said here* |  |  |  |  | as crystals | vn exist-47.1 «NP V»: agent=Theme |

<!-- div src -->

**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

<!-- pn -->
- ← previous: [Separating mixtures, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/t10/)
- next →: [Separating mixtures, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/e2/)
- ↑ back to [Separating mixtures](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/8-separating-mixtures/)