Pal ek pal mein hi tham sa gaya Tu haath mein haath jo de gaya
Chalun main jahaan jaaye tu
Daayein main tere, baayein tu
Hoon rut main, hawayein tu
Saathiya…

Hansu main jab gaaye tu
Roun main murjhaaye tu
Bheegun main barsaaye tu
Saathiya…

Saaya mera hai teri shakal
Haal hai aisa kuch aajkal
Subah main hoon tu dhoop hai
Main aaina hoon tu roop hai
Yeh tera saath khoob hai
Humsafar…

Tu ishq ke saare rang de gaya
Phir kheench ke apne sang le gaya
Kahin pe kho jaaye chal
Jahaan ye ruk jaaye pal
Kabhi naa phir aaye kal
Saathiya…

Ek maange agar sau khwaab doon
Tu rahe khush, main aabad hoon
Tu sabse juda juda sa hai
Tu apni tarah tarah sa hai
Mujhe lagta nahi hai tu doosra​

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .