--- title: It is given that a solution possesses a pH of 2. Select the statemen… — Alkalis and soda, and how they cancel… · tree and pragmatics description: It is given that a solution possesses a pH of 2. Select the statement most accurately characterising that solution. Exam question 2 of lesson 16 «Alkalis and soda, and how they cancel acids» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/16-alkalis-and-soda/e2/) [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/) / [Alkalis and soda, and how they cancel…](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/16-alkalis-and-soda/) / e2 # Exam question 2 · Alkalis and soda, and how they cancel acids It is given that a solution possesses a pH of 2. Select the statement most accurately characterising that solution. **Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** solution, you, statement · **What happens:** give, possess, select, characteris · **To what, where:** It, pH, statement, solution This is exam question 2 of lesson 16 «Alkalis and soda, and how they cancel acids» 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/16-alkalis-and-soda/#e2). ## The question {#question} *Sentence 1:* It is given that a solution possesses a pH of 2. ```conllu # sent_id = question:chemistry:16-alkalis-and-soda:e2:1 # text = It is given that a solution possesses a pH of 2. 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 3 nsubj:pass _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 aux:pass _ _ 3 given give VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 0 root _ _ 4 that that SCONJ IN _ 7 mark _ _ 5 a a DET DT Definite=Ind|PronType=Art 6 det _ _ 6 solution solution NOUN NN Number=Sing 7 nsubj _ _ 7 possesses possess VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 advcl _ _ 8 a a DET DT Definite=Ind|PronType=Art 9 det _ _ 9 pH ph NOUN NN Number=Sing 7 obj _ _ 10 of of ADP IN _ 11 case _ _ 11 2 2 NUM CD NumForm=Digit|NumType=Card 9 nmod _ SpaceAfter=No 12 . . PUNCT . _ 3 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **give** | present · passive | | It | | | | | vn give-13.1-1 «NP V NP»: subject=Theme | | 2 | **possess** | present | a solution | a pH of 2 | | | | | vn own-100.1 «NP V NP»: agent=Pivot ph=Theme | 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. *Sentence 2:* Select the statement most accurately characterising that solution. ```conllu # sent_id = question:chemistry:16-alkalis-and-soda:e2:2 # text = Select the statement most accurately characterising that solution. 1 Select select VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 3 det _ _ 3 statement statement NOUN NN Number=Sing 1 obj _ _ 4 most most ADV RBS Degree=Sup 5 advmod _ _ 5 accurately accurately ADV RB _ 6 advmod _ _ 6 characterising characteris VERB VBG VerbForm=Ger 3 acl _ _ 7 that that DET DT Number=Sing|PronType=Dem 8 det _ _ 8 solution solution NOUN NN Number=Sing 6 obj _ SpaceAfter=No 9 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **select** | imperative | you *not said here* | the statement | | | | | vn obtain-13.5.2 «NP V NP»: agent=Agent statement=Theme | | 2 | **characteris** | gerund | the statement *not said here* | that solution | | | | accurately *property* | tree rules | ## The options {#options} ### Option 1 · ← Mova's choice {#o1} It is neutral ```conllu # sent_id = question:chemistry:16-alkalis-and-soda:e2:o1:1 # text = It is neutral 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 3 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 cop _ _ 3 neutral neutral ADJ JJ Degree=Pos 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | It | | | | | neutral *property* | tree rules | ### Option 2 {#o2} It is weakly alkaline ```conllu # sent_id = question:chemistry:16-alkalis-and-soda:e2:o2:1 # text = It is weakly alkaline 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 4 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 3 weakly weakly ADJ JJ Degree=Pos 4 amod _ _ 4 alkaline alkaline NOUN NN Number=Sing 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is a** | present | It | weakly alkaline | | | | | tree rules | ### Option 3 · ✓ the right answer {#o3} It is strongly acidic ```conllu # sent_id = question:chemistry:16-alkalis-and-soda:e2:o3:1 # text = It is strongly acidic 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 4 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 3 strongly strongly ADV RB _ 4 advmod _ _ 4 acidic acidic ADJ JJ Degree=Pos 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | It | | | | | acidic, strongly *property* | tree rules | ### Option 4 {#o4} It is strongly alkaline ```conllu # sent_id = question:chemistry:16-alkalis-and-soda:e2:o4:1 # text = It is strongly alkaline 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 4 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 3 strongly strongly ADV RB _ 4 advmod _ _ 4 alkaline alkaline ADJ JJ Degree=Pos 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | It | | | | | alkaline, strongly *property* | tree rules | **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. - ← previous: [Alkalis and soda, and how they cancel…, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/16-alkalis-and-soda/e1/) - next →: [Alkalis and soda, and how they cancel…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/16-alkalis-and-soda/e3/) - ↑ back to [Alkalis and soda, and how they cancel acids](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/16-alkalis-and-soda/)