chemical
/ˈkemɪkl/adjective, noun
उच्चारण केमिकल
रासायनिक; रसायन
Core word
- 1
connected with chemistry; a substance obtained by or used in a chemical process
रासायनिक; रसायन
- chemical fertilizers
- harmful chemicals
- The factory stores dangerous chemicals in a locked room.
+ 2 more examples
- A chemical change cannot be reversed easily.
- The lab coat protects you from spilt chemicals.
§Structures (grammar patterns) 5
chemical (adjective) + noun
As an adjective, chemical comes before a noun and means connected with chemistry or made by chemistry.
Adjective के रूप में chemical noun से पहले आता है और रसायन-विज्ञान से संबंधित या उसके द्वारा बने का अर्थ देता है।
- A chemical reaction produced heat.
- The factory has a chemical plant.
a chemical / chemicals (noun)
As a noun, chemical is countable and means a substance; the plural chemicals is very common.
Noun के रूप में chemical countable है और एक पदार्थ बताता है; plural chemicals बहुत प्रचलित है।
- The river was polluted by toxic chemicals.
- Salt is a chemical used in every home.
chemical + noun (common combinations)
Chemical forms set terms such as chemical formula, chemical change, chemical weapon and chemical energy.
Chemical से chemical formula, chemical change, chemical weapon और chemical energy जैसे निश्चित शब्द बनते हैं।
- Rusting is a chemical change.
- The teacher wrote the chemical formula of water.
chemical vs chemistry vs chemist
Chemical is the adjective or substance, chemistry is the science and a chemist is the person.
Chemical adjective या पदार्थ है, chemistry विज्ञान है और chemist व्यक्ति है।
- The chemist studies the chemistry of chemical compounds.
chemical as a noun in science (chemical compound)
Chemical can name any substance used in or made by chemistry, whereas a compound is a substance of two or more elements.
Chemical रसायन-विज्ञान में प्रयुक्त या उससे बने किसी भी पदार्थ का नाम हो सकता है, जबकि compound दो या अधिक तत्वों से बना पदार्थ है।
- Common salt is a chemical compound of sodium and chlorine.
+Collocations 5
adjective + chemical
toxicharmfulindustrialagriculturalhousehold
- Farmers should handle agricultural chemicals carefully.
verb + chemical
usesprayreleasestorehandle
- Wear gloves when you handle chemicals in the laboratory.
chemical + noun
reactionformulaweaponplantelement
- Oxygen is a chemical element.
chemical + process
changepollutionwasteanalysisengineering
- Chemical waste must not be thrown into rivers.
chemical + safety terms
spillsafetyhazardexposureburn
- A chemical spill closed the lab for two days.
“More examples 6
- Water is made up of two chemical elements, hydrogen and oxygen.
जल दो रासायनिक तत्वों, हाइड्रोजन और ऑक्सीजन, से बना है।
- Many fruits are treated with chemicals to ripen faster.
कई फलों को जल्दी पकाने के लिए रसायनों से उपचारित किया जाता है।
- Radhika's brother is studying chemical engineering in Pune.
राधिका का भाई पुणे में chemical engineering पढ़ रहा है।
- Mixing the two liquids caused a violent chemical reaction.
दोनों तरल मिलाने पर तीव्र रासायनिक अभिक्रिया हुई।
- Burning of paper is a chemical change that cannot be reversed.
कागज़ का जलना एक रासायनिक परिवर्तन है जिसे उलटा नहीं किया जा सकता।
- The chemical industry provides jobs to thousands of people in Gujarat.
रासायनिक उद्योग गुजरात में हज़ारों लोगों को रोज़गार देता है।
!Common mistakes 1
✗ The factory is releasing harmful chemical into the river.
✓ The factory is releasing harmful chemicals into the river.
As a countable noun, chemical needs the plural -s here.
यहाँ countable noun होने के कारण chemical में plural -s लगाना आवश्यक है।
✓In the exam
General knowledge
The Bhopal gas tragedy (1984) was caused by the leak of methyl isocyanate (MIC) gas from a chemical factory.
भोपाल गैस त्रासदी (1984) एक रासायनिक कारख़ाने से methyl isocyanate (MIC) गैस के रिसाव से हुई।
Science: chemical change forms a new substance (burning), while physical change does not (melting ice).
विज्ञान में रासायनिक परिवर्तन नया पदार्थ बनाता है (जलना), जबकि भौतिक परिवर्तन नहीं (बर्फ़ पिघलना)।