Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these

1 Answers  

---

The inert gas which is substituted for nitrogen in the air, used by deep sea divers for breathing, is 1 Helium 2 Argon 3 Krypton 4 Xenon

3 Answers   Argon,

---

Which of the following are the ingredients of gun metal? 1 Iron, Tin 2 Copper, Tin 3 Iron, Brass, Tin 4 Iron, Zinc, Titanium

2 Answers  

---

Of the various forms of carbon, the one which is used for adsorption purpose, is 1 Diamond 2 Graphite 3 Coke 4 Wood charcoal

1 Answers  

---

In which of the following processes light energy is converted into chemical energy? 1 Respiration 2 Fermentation 3 Photosynthesis 4 Photoresiration

2 Answers  

---

The pink color of Bayer’s reagent is discharged when acetylene is passed through it. This is due to the formation of 1 Acetic acid 2 Ethylene 3 Water 4 Oxalic acid

2 Answers  

---

Who is the second female cosmonaut?

0 Answers  

---

In modern science, what is 'fourth dimension'?

0 Answers  

---

Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition

2 Answers  

---

Terls was dedicated to u.n as an international institution?

0 Answers  

---

Why is food necessary for human body ?

2 Answers  

---

The disease that is caused by viral infection is

2 Answers  

---