---
title: Which of the following statements most accurately characterises a mo… — Molecules: when atoms join up · tree and pragmatics
description: Which of the following statements most accurately characterises a molecule? Exam question 1 of lesson 3 «Molecules: when atoms join up» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Exam question 1 · Molecules: when atoms join up

<!-- .ven lang=en -->
Which of the following statements most accurately characterises a molecule?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **What happens:** follow, characteris · **To what, where:** molecule

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This is exam question 1 of lesson 3 «Molecules: when atoms join up» 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/3-molecules-when-atoms-join-up/#e1).

## The question {#question}

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:e1:1
# text = Which of the following statements most accurately characterises a molecule?
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	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	molecule	molecule	NOUN	NN	Number=Sing	8	obj	_	SpaceAfter=No
11	?	?	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 |  | a molecule |  |  |  | of the following statements; accurately *property* | tree rules |

<!-- .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 -->
A mixture of substances that may be separated by a magnet

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:e1:o1:1
# text = A mixture of substances that may be separated by a magnet
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	mixture	mixture	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	substances	substance	NOUN	NNS	Number=Plur	2	nmod	_	_
5	that	that	PRON	WDT	PronType=Rel	8	nsubj:pass	_	_
6	may	may	AUX	MD	VerbForm=Fin	8	aux	_	_
7	be	be	AUX	VB	VerbForm=Inf	8	aux:pass	_	_
8	separated	separate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl:relcl	_	_
9	by	by	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	magnet	magnet	NOUN	NN	Number=Sing	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **separate** | may · passive | a magnet | substances |  |  |  |  | vn separate-23.1-1-1 «NP V NP»: agent=Agent subject=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
A particle visible to the unaided eye

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:e1:o2:1
# text = A particle visible to the unaided eye
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	particle	particle	NOUN	NN	Number=Sing	3	nsubj	_	_
3	visible	visible	ADJ	JJ	Degree=Pos	0	root	_	_
4	to	to	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	unaided	unaided	ADJ	JJ	Degree=Pos	7	amod	_	_
7	eye	eye	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
A group of two or more atoms joined together

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:e1:o3:1
# text = A group of two or more atoms joined together
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	group	group	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	7	case	_	_
4	two	two	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
5	or	or	CCONJ	CC	_	6	cc	_	_
6	more	more	ADJ	JJR	Degree=Cmp	4	conj	_	_
7	atoms	atom	NOUN	NNS	Number=Plur	2	nmod	_	_
8	joined	join	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	acl	_	_
9	together	together	ADV	RB	_	8	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **join** | participle |  | two atoms *not said here* |  |  |  | together *property* | vn mix-22.1-2-1 «NP V»: agent=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
A single atom deprived of its electrons

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:e1:o4:1
# text = A single atom deprived of its electrons
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	single	single	ADJ	JJ	Degree=Pos	3	amod	_	_
3	atom	atom	NOUN	NN	Number=Sing	4	nsubj	_	_
4	deprived	deprive	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	electrons	electron	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **deprive** | past | a single atom |  |  |  |  | of atom's electrons | vn deprive-10.6.2 «NP V NP PP.theme»: agent=Agent of electron=Theme |

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**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.

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