hydrogen
/ˈhaɪdrədʒən/noun
उच्चारण हाइड्रजन
हाइड्रोजन
Core word
- 1
[U]
a chemical element, a gas that is the lightest of all the elements
हाइड्रोजन
- green hydrogen
- Hydrogen is used as rocket fuel because it is very light and burns with great energy.
- Water is made of hydrogen and oxygen.
+ 2 more examples
- The balloon rose quickly because it was filled with hydrogen.
- India plans to use hydrogen to power buses and trains in the future.
Synonyms H
§Structures (grammar patterns) 5
hydrogen (uncountable noun)
Hydrogen is a substance, so it has no plural and takes no 'a'.
Hydrogen एक पदार्थ है, इसलिए इसका plural नहीं बनता और इसके साथ 'a' नहीं आता।
- Hydrogen is the lightest gas.
- The sun is made mostly of hydrogen.
the / no article with hydrogen
Use no article for hydrogen in general, and 'the' only for a particular use or kind.
सामान्य अर्थ में hydrogen के साथ article नहीं लगता; विशेष उपयोग के लिए ही 'the' आता है।
- Water is made of hydrogen and oxygen.
- The hydrogen in this cylinder is highly pure.
hydrogen + noun
Used as a modifier in scientific compounds.
वैज्ञानिक यौगिक शब्दों में यह modifier की तरह प्रयुक्त होता है।
- Hydrogen peroxide is used to clean small cuts.
- A hydrogen bomb is far more powerful than an atom bomb.
combine / react with hydrogen
Use 'with' for what hydrogen combines or reacts with.
Hydrogen जिसके साथ मिलता या अभिक्रिया करता है, उसके लिए 'with' आता है।
- Oxygen combines with hydrogen to form water.
hydrogen as the first element
In exam questions hydrogen is often the first element, with symbol H and atomic number 1.
परीक्षा के प्रश्नों में hydrogen प्रायः पहला तत्त्व होता है, जिसका प्रतीक H और परमाणु संख्या 1 है।
- Hydrogen is the first element in the periodic table.
+Collocations 5
hydrogen + noun
gasatomperoxidebombfuelion
- A hydrogen atom has one proton and one electron.
verb + hydrogen
producereleaseburnstorecombine with
- Zinc reacts with acid to release hydrogen.
adjective + hydrogen
liquidpurecompressedgaseousexplosive
- Compressed hydrogen is stored in strong steel cylinders.
hydrogen + of / in
a moleculewaterthe sunan acidorganic compounds
- There are two atoms of hydrogen in every molecule of water.
hydrogen + economy / energy
economyenergycellpowervehicle
- A hydrogen cell converts fuel directly into electricity.
“More examples 7
- Hydrogen burns with a pale blue flame.
Hydrogen हल्की नीली लौ के साथ जलती है।
- Some buses in the city now run on hydrogen fuel cells.
शहर की कुछ बसें अब hydrogen fuel cells से चलती हैं।
- Radhika learnt in Class 9 that hydrogen has the atomic number one.
राधिका ने कक्षा 9 में पढ़ा कि hydrogen की परमाणु संख्या एक है।
- Stars shine because hydrogen turns into helium inside them.
तारे इसलिए चमकते हैं क्योंकि उनके भीतर hydrogen, helium में बदलती है।
- The balloon rose quickly because it was filled with hydrogen.
गुब्बारा तेज़ी से ऊपर उठा क्योंकि उसमें hydrogen भरी थी।
- Radhika balanced the chemical equation for the burning of hydrogen in air.
राधिका ने हवा में hydrogen के जलने की रासायनिक समीकरण को संतुलित किया।
- Hydrogen is being tested as a clean fuel for trains.
Hydrogen को रेलगाड़ियों के लिए स्वच्छ ईंधन के रूप में परखा जा रहा है।
!Common mistakes 2
✗ Hydrogen are a very light gas.
✓ Hydrogen is a very light gas.
Hydrogen is uncountable and takes a singular verb.
Hydrogen uncountable है और singular verb लेता है।
✗ Hydrogen is more lighter than oxygen.
✓ Hydrogen is lighter than oxygen.
Do not combine 'more' with the -er comparative form.
-er वाले comparative के साथ 'more' नहीं लगाया जाता।
≈Synonyms and antonyms
Synonyms
✓In the exam
General knowledge
Science: hydrogen is the lightest and most abundant element in the universe; GK: India's National Green Hydrogen Mission was launched in 2023.
विज्ञान में हाइड्रोजन ब्रह्मांड का सबसे हल्का और सबसे प्रचुर तत्व है; GK में भारत का राष्ट्रीय हरित हाइड्रोजन मिशन 2023 में शुरू हुआ।