Methane (pronounced /ˈmɛθeɪn/ or /ˈmiːθeɪn/) is a chemical compound with the chemical formula CH4. It is the simplest alkane, the main component of natural gas, and probably the most abundant organic compound on earth. The relative abundance of methane makes it an attractive fuel. However, because it is a gas at normal conditions, methane is difficult to transport from its source.
Methane is a relatively potent greenhouse gas. The concentration of methane in the Earth's atmosphere in 1998, expressed as a mole fraction, was 1745 nmol/mol (parts per billion, ppb), up from 700 nmol/mol in 1750. By 2008, however, global methane levels, which had stayed mostly flat since 1998, had risen to 1800 nmol/mol.
Methane is a tetrahedral molecule with four equivalent C-H bonds. Its electronic structure is described by four bonding molecular orbitals (MOs) resulting from the overlap of the valence orbitals on C and H. The lowest energy MO is the result of the overlap of the 2s orbital on carbon with the in-phase combination of the 1s orbitals on the four hydrogen atoms. Above this level in energy is a triply degenerate set of MOs that involve overlap if the 2p orbitals on carbon with various linear combinations of the 1s orbitals on hydrogen. The resulting "three-over-one" bonding scheme is consistent with photoelectron spectroscopic measurements.
(Har Jagah Mein Tu Samaaya Hai, Har Disha Mein Tu Numaaya Hai) 2
Subah Mein Shaam Mein Tera Jirr Hai, Tera Saaya Hai
Mera Haath Jo Tu Thaam Le, Phir Jahaan Ka Karana Hai Kya
(Tu Hi Tu Har Jagah, Tu Hi Tu Jine Ki Wajah) 2
Meri Subah Mein Meri Shaam Mein, Tera Jirr Hai, Tera Saaya Hai
Mera Haath Jo Tu Thaam Le, Phir Jahaan Ka Karana Hai Kya
(Tu Hi Tu Har Jagah, Tu Hi Tu Jine Ki Wajah) 2
Tu Roshani Koi Chaandani, Tu Hi Ped Hai Tu Hi Chhaanv Bhi..
Tu Hi Raasta Tu Hi Hai Safar, Jaha Pahunchana Hai Woh Gaanv Bhi
Mera Haath Jo Tu Thaam Le, Phir Jahaan Ka Karana Hai Kya
(Tu Hi Tu Har Jagah, Tu Hi Tu Jine Ki Wajah) 2
Yaar Tera Saath Jis Pal Pa Liya Jisane
Usako Toh Phulon Ki Tarah Raahon Kaar Mile
Subah Mein Shaam Mein Tera Jirr Hai, Tera Saaya Hai
Mera Haath Jo Tu Thaam Le, Phir Jahaan Ka Karana Hai Kya
Har Jagah Mein Tu Samaaya Hai, Har Disha Mein Tu Numaaya Hai
Main Tere Nashe Mein Hoon Chur Sa, Teri Justajoo Mein Hai Jindagi
Mera Haath Jo Tu Thaam Le, Phir Jahaan Ka Karana Hai Kya
(Tu Hi Tu Har Jagah, Tu Hi Tu Jine Ki Wajah) 2
Abb Toh Har Roz Yahin Sochake Hum Uthate Hai
Tera Chehara Kahi Ik Baar Najar Aa Jaaye
Aur Harshab Yahi Sochake Kab Sote Hai
Tu Dabe Paanv Khwaab Mein Kahi Chala Aa Re
Jis Ghadi Tujhase Pehali Baar Aankh Takraayi
Aisa Laga Mujhame Jindagi Aayi
Baat Phir Jehan Mein Aankhon Se Tere Takraayi
Der Tak Abb Jism Se Mere Teri Khushbu Aayi
Dil Ne Yuun Tujhase Mulaakaat Ke Saare Lamhe
Tujhako Maalum Hi Nahi Kitani Baar Dohraayi
Ishq Ne Tere Hamein Jine Ka Dhang Sikhalaaya
Ik Naye Andaaj Mein Khud Hamase Hamako Milwaaya
Inn Dino Jab Bhi Kabhi Maine Aaina Dekha
Apane Chehare Pe Kahi Kuchh Noor Sa Paaya Mm Mm Mm
Abb Tumhaare Kise Yeh Din Raat Duwa Kare
Noor Chehare Pe Yeh Saari Umrr Ko Bas Thehar Jaaye
Abb Toh Har Roz Yahin Sochake Hum Uthate Hai
Tera Chehara Kahin Ik Baar Najar Aa Jaaye
Teri Chaah Karegi Deewaana Mujhe Kyun Aisa Lag Raha
Abb Mumkin Na Bhul Paana Tujhe Kyun Aisa Lag Raha
(Aashiqui Aashiqui Tu Hai Meri Aashiqui) 4
(Abb Tujhase Milakar Bhi Milane Ki Khwaahish Mujhako Rahe) 2
Hai Yeh Kya Kaisi Tishnagi, Jo Bujhake Bhi Na Bujhe
(Koi Patta Hile Ya Hawa Bhi Chale Aankhein Jaakar Meri) 2
Sidhi Dar Par Lage, (Aashiqui Aashiqui Tu Hai Meri Aashiqui) 2
(Tauba Raatein Meri Ya Phir Ho Meri Subae) 2
Har Ghadi Teri Yaadein Hi Bas Dil Mein Rahe
(Dil Tassabur Se Tere Na Hate Tujhase Hai Jud Gaye) 2
Kuchh Yuun Mere Silsile, (Aashiqui Aashiqui Tu Hai Meri Aashiqui) 2
Teri Chaah Karegi Deewaana Mujhe Kyun Aisa Lag Raha
Abb Mumkin Na Bhul Paana Tujhe Kyun Aisa Lag Raha
(Aashiqui Aashiqui Tu Hai Meri Aashiqui) 4
(Tu Hi Mera Saara Jahaan Hai, Tu Hi Mere Rab Ki Tarah Hai) 2
Tu Hi Mera...., (Tu Hi Mera Saara Jahaan Hai, Tu Hi Mere Rab Ki Tarah Hai) 2
Kahin Teri Dil Ki Panaaho Mein, Maine Paaya Mujhe Teri Chaaho Mein
Jaise Lobaan Jalata Ho Har Pal Kahin, Meri Khwaahish Mein Yuun Tu Jala Hai
Tu Hi Mera...., Tu Hi Mera Saara Jahaan Hai, Tu Hi Mere Rab Ki Tarah Hai
Bepanaaho Mein Tujhako Chaahata Hoon, Tu Hi Hai Mere Dil Ka Sukun
Tu Dikhe Hai Mujhako Chaar Su
Main Tujhe Hi Fakat Dhundhata Hoon Tu Hi Dil Ki Aarjoo
Dil Toh Mera Yeh Aksar Kare Door Tujhase Na Ik Pal Rahu..
Teri Parchhayi Bhi Hai Bahot Dilnashi, Tu Hasa Toh Yeh Aalam Hasa Hai
Jo Labon Se Tune Bola Hai, Woh Hansi Pyaar Ka Silsila Hai
Jo Aankhon Mein Teri Likha Hai, Woh Aankhon Se Main Padha Hai
Tu Hi Mera Saara Jahaan Hai, Tu Hi Mere Rab Ki Tarah Hai
Kahin Teri Dil Ki Panaaho Mein, Maine Paaya Mujhe Teri Chaaho Mein
Jaise Lobaan Jalata Ho Har Pal Kahin, Meri Khwaahish Mein Yuun Tu Jala Hai
Tu Hi Mera...., (Tu Hi Mera Saara Jahaan Hai, Tu Hi Mere Rab Ki Tarah Hai) 2
Jivan Lage Hai Suna Sa Kyun
Yeh Mann Lage Hain Tuta Sa Kyun..
(Har Pal Lage Hain Chhuta Sa Kyun
Sab Kuchh Lage Hain Rutha Sa Kyun
Aaja Na Abb Kahin Se Ji Na Saku
Jo Kuchh Bhi Hai Huwa Woh Bhulaa De Na Tu
(Tu Hai Isaka Sukun, Tu Hai Meri Justajoo) 2 ) 2
Hai Yaadon Ki Phaili Baahon Mein Tu
Hai Raahon Pe Jaati Nigaahon Mein Tu
Hai Modon Mein Tu, Jagaho Mein Tu
Hai Girkar Chadhi Ghataao Mein Tu
Hai Aahon Mein Tu, Hai Baaton Mein Tu
Hai Har Waqt Haan Meri Chaahon Mein Tu
Jo Aandhi Si Hai Hawaao Mein Tu
Jo Man Me Chale (Alaao Mein Tu) 2
Nindon Se Abb Main Dur Rahu
Khaabon Ki Bhi Na Raah Taku
Aaja Na Abb Kahin Se Ji Na Saku
Jo Kuchh Bhi Hai Huwa Woh Bhulaa De Na Tu
(Tu Hai Isaka Sukun, Tu Hai Meri Justajoo) 6
(Tujhe Jo Bhi Mile Hai Woh Dard De
De Khushi Mujhe Teri, Tere Jakhm De) 2
Koi Shabnami Tera Tu Ashq De, Haan Mehak Bhara Tera Woh Lamj De
(Mujhe Tu Mukkamal Chaahiye, Har Rang Mein Tera Aks De) 2
Har Rang Mein Tera Aks De, (Mujhe Ishq De, Tera Ishq De) 3
Kabhi Mujhame Apana Khumaar Bhar, Kabhi Mujhako Bekaraar Tu Kar
Kabhi Mujhase Ho Ja Khafa, Kabhi Bewajah Mujhe Tu Sata
Kabhi Baahon Mein Tu Toot Ja, (Kabhi Judake Tu Kahin Chhut Ja) 2
Mujhe Teri Kurbat Chaahiye, (Tere Sar Se Paanv Tak Naksh De) 2
(Mujhe Ishq De, Tera Ishq De) 3
Kuchh Iss Tarah Mujhe Pyaar Kar
Tere Ghum Khushi Mein Shumaar Tu Kar
Kabhi Hijr Se Pajhad Bana, Kabhi Vasl Se Baha Yeh Tu Kar
Kabhi Julf Ki Mujhe De Ghata, (Kabhi Saanson Se Mujhe De Jala) 2
(Tera Saath Har Pal Chaahiye, Mujhe Har Ghadi Tera Waqt De) 2
Mujhe Har Ghadi Tera Waqt De, (Mujhe Ishq De, Tera Ishq De) 3
(Kuchh Dard Mujhe Tu Sehane De, Andar Se Jinda Rehane De
Aankhein Banjar Ho Jaayengi, Kuchh Ashq Mere Tu Behane De) 2
Honto Pe Hansi Aankhon Mein Nami, Bheegi Si Hai Mere Dil Ki Jamin
Sab Kuchh Haasil Hai Aaj Magar, Mitati Hi Nahi Kyun Teri Kami
Nindon Mein Sahi Khwaabon Mein Sahi, Baahon Mein Teri So Lene De
Kuchh Dard Mujhe Tu Sehane De, Andar Se Jinda Rehane De
Aankhein Banjar Ho Jaayengi, Kuchh Ashq Mere Tu Behane De
Woh Chehara Tera Andaaj Tera, Baatein Teri Ehsaas Tera
Jo Tere Saath Mein Bite The, Kuchh Lahme Hansi Kuchh Shaam O Subah
Unako Tu Abhi Ai Jaan Meri Kuchh Der Toh Mera Rehane De
Kuchh Dard Mujhe Tu Sehane De, Andar Se Jinda Rehane De
Aankhein Banjar Ho Jaayengi, Kuchh Ashq Mere Tu Behane De
(Kuchh Dard Mujhe Tu Sehane De, Andar Se Jinda Rehane De
Aankhein Banjar Ho Jaayengi, Kuchh Ashq Mere Tu Behane De) 2
(Zindagi Ne Zindagi Bhar Gam Diye
Jitne Bhi Mausam Diye Sab Nam Diye) 3
(Jab Tadapta Hai Kabhi Apna Koi
Khoon Ke Aansoo Rula De Bebasi) 2
(Jee Ke Phir Karna Kya Mujhko Aisi Zindagi) 2
Jisne Zakhmon Ko Nahi Marham Diye
Zindagi Ne Zindagi Bhar Gam Diye
Jitne Bhi Mausam Diye Sab Nam Diye
Zindagi Ne Zindagi Bhar Gam Diye
(Apne Hi Pesh Aaye Humse Ajnabee
Waqt Ki Saajish Koi Samjha Nahi) 2
Yeh Maana Kuch Khatayein Humse Ho Gayi
Raah Mein Patthar Meri Har Dam Diye
Zindagi Ne Zindagi Bhar Gam Diye
Jitne Bhi Mausam Diye Sab Nam Diye
Zindagi Ne Zindagi Bhar Gam Diye
(Ek Mukambal Kashmakash Hai Zindagi
Usne Humse Ki Kabhi Naa Dosti) 2
Jab Mili Mujhko Aasoo Ke Woh Tohphe De Gayi
(Has Sake Hum Aise Mauke Kam Diye) 2
Zindagi Ne Zindagi Bhar Gam Diye
Jitne Bhi Mausam Diye Sab Nam Diye
Zindagi Ne Zindagi Bhar Gam Diye
Woh Ajnabee Woh Woh Woh Woh Ajanabee, Woh Ajanabee.......
(Aisa Koi Mujhko Mil Gaya Hai Saathiya
Jise Dekhakar Main Bhulu Saari Duniya) 2
(Woh Woh Woh Ajanabee, Woh Ajanabee Jo Dekhe Dur Se
Dekhu Main Usako Hi, Ho Usako Hi, Abb Sab Kuchh Bhul Ke) 2
Dhadkan Dhadkan Ya Saanson Mein
Raatein Raatein Ya Khaabon Mein
Sab Mein Sab Mein Wahi Toh Hai, Ke Bata Doon Main Use
Shaame Shaame Ya Subaho Mein
Shaamil Shaamil Woh Har Pal Mein
Har Dum Har Dum Woh Baaton Mein, Mere Rahi Hai Kahin Woh Woh Woh...
Woh Ajnabee, Woh Ajnabee, Woh Ajnabee, Woh Ajnabee
Woh Woh Woh Ajnabee, Woh Ajnabee, Woh Ajnabee........
(Abb Usase Aisa Jud Gaya Hai Silsila
Wohi Woh Nazar Aaye Mujhko Har Jagah) 2
Yeh Yeh Yeh Jindagi Roshan Huyi Hai Usake Noor Se
Dil Ko Sachchi Khushi Haasil Huyi Hai Usake Ishq Se
Mujhko Abb Har Ghadi, Woh Har Ghadi, Usakaa Hi Suroor Hai
De De Woh Usako Haan Usako Hi Aankhen??? Majboor Hai
Dhadkan Dhadkan Ya Saanson Mein
Raatein Raatein Ya Khaabon Mein
Sab Mein Sab Mein Wahi Toh Hai, Ke Bata Doon Main Use
Shaame Shaame Ya Subaho Mein
Shaamil Shaamil Woh Har Pal Mein
Har Dum Har Dum Woh Baaton Mein, Mere Rahi Hai Kahin Woh Woh Woh...
Woh Ajnabee, Woh Ajnabee, Woh Ajnabee, Woh Ajnabee
Woh Woh Woh Ajnabee, Woh Ajnabee, Woh Ajnabee........
(Usako Paake Paaya Maine Saara Jahaan
Rab Usako Karana Na Kabhi Bhi Juda) 2
Woh Woh Abb Bandagi Shaamil Huyi, Hai Meri ?? Mein
Dil Ko Sachchi Khushi Haasil Huyi Hai Usake Ishq Se
Mujhko Abb Har Ghadi, Woh Har Ghadi, Usakaa Hi Suroor Hai
De De Woh Usako Ho Usako Hi Aankhen?? Majboor Hai
Dhadkan Dhadkan Ya Saanson Mein
Raatein Raatein Ya Khaabon Mein
Sab Mein Sab Mein Wahi Toh Hai, Ke Bata Doon Main Use
Shaame Shaame Ya Subaho Mein
Shaamil Shaamil Woh Har Pal Mein
Har Dum Har Dum Woh Baaton Mein, Mere Rahi Hai Kahin Woh Woh Woh...
Woh Ajnabee, Woh Ajnabee, Woh Ajnabee, Woh Ajnabee
Woh Woh Woh Ajnabee, Woh Ajnabee, Woh Ajnabee........
Woh Ajnabee, Woh Ajnabee, Woh Ajnabee, Woh Ajnabee
(Jab Rulaana Hi Tha Tujhe Toh Phir Hasaaya Kyun
Saath Rehkar Bhi Hai Juda Toh Paas Aaya Kyun) 3
(Kyun Yakin Uth Gaya Dil Se Kahin Wafaaon Ka
Pyaar Mehsus Kyun Hone Laga Gunaaho Sa) 2
Aaya Apane Bich Mein Kisika Saaya Kyun
Jab Rulaana Hi Tha Tujhe Toh Phir Hasaaya Kyun
Saath Rehkar Bhi Hai Juda Toh Paas Aaya Kyun
(Tu Ajnabi Ki Tarah Humase Pesh Aata Hai
Chand Lamhe Bhi Hamein Tu Na De Paata Hai) 2
Aisi Kya Hamane Ki Khata, Hame Sataaya Kyun
(Jab Rulaana Hi Tha Tujhe Toh Phir Hasaaya Kyun
Saath Rehkar Bhi Hai Juda Toh Paas Aaya Kyun) 2
Bheed Mein Bhi Hum Tanha Rahein Tere Gum Ne Yeh Haalat Kar Di
Kabhi Khud Ke Liye Kuchh Soch Sake Itani Bhi Nahi Fursat Di
Aankhon Ki Talash Jo Hai, Woh Hai Tera Chehra
Dhadkan Dil Ke Paas Toh Hai, Lekin Hai Bewajah
Main Hoon Shaukh Se Abb Koi Patta Tuta Huva
Mujhko Yeh Hawaayein Udaati Phire Har Jagah
Ke Bin Tere Jeena Nahi, Haan Bin Tere Jeena Nahi
Na Bin Tere Jeena Nahi, Ja Bin Tere Jeena Nahi
Aankhon Ki Talash Jo Hai, Woh Hai Tera Chehra
Dhadkan Dil Ke Paas Toh Hai, Lekin Hai Bewajah
Main Hoon Shaukh Se Abb Koi Patta Tuta Huva
Mujhko Yeh Hawaayein Udaati Phire Har Jagah
Ke Bin Tere Jeena Nahi, Haan Bin Tere Jeena Nahi
Na Bin Tere Jeena Nahi, Ja Bin Tere Jeena Nahi
Chahe Jitne Bhi Aansu Bahein
Saansein Seene Mein Chubhati Rahein, Muskura Kar Har Gum Sahein
Dil Se Ho Kam Kabhi Na Yeh Dard Tera, Phool Jaisa Lage Har Zakhm Tera
Inko Mujhko Toh Seena Nahin, Ke Bin Tere Jeena Nahi
Aankhon Ki Talash Jo Hai, Woh Hai Tera Chehra
Dhadkan Dil Ke Paas Toh Hai, Lekin Hai Bewajah
Main Hoon Shaukh Se Abb Koi Patta Tuta Huva
Mujhko Yeh Hawaayein Udaati Phire Har Jagah
Ke Bin Tere Jeena Nahi, Haan Bin Tere Jeena Nahi
Na Bin Tere Jeena Nahi, Ja Bin Tere Jeena Nahi
Bheed Mein Bhi Hum Tanha Rahein Tere Gum Ne Yeh Haalat Kar Di
Kabhi Khud Ke Liye Kuchh Soch Sake Itani Bhi Nahi Fursat Di
Teri Yaadon Mein Har Pal Kate, Khud Se Teri Hi Baatein Karein
Dil Khijaaon Sa Banjar Rahein
Humko Manjoor Hai Har Sitam Tera, Berukhi Bhi Teri Bewafapan Tera
Jaam Kushiyon Ka Peena Nahi, Ke Bin Tere Jeena Nahi
Aankhon Ki Talash Jo Hai, Woh Hai Tera Chehra
Dhadkan Dil Ke Paas Toh Hai, Lekin Hai Bewajah
Main Hoon Shaukh Se Abb Koi Patta Tuta Huva
Mujhko Yeh Hawaayein Udaati Phire Har Jagah
(Ke Bin Tere Jeena Nahi, Haan Bin Tere Jeena Nahi
Na Bin Tere Jeena Nahi, Ja Bin Tere Jeena Nahi) 2