LGS, LDC Expected Questions and Answers - Part -6
1. Cynide process is used to prepare?
Answer:- Gold and Silver
2. The acid used to make permanent writing on the surface of glass?
Answer:- Hydrofluric acid
3. Molish's test used to?
Answer:- Detect carbohydrates in a solution
4. The Substance preserved under water is?
Answer:- White phosphorous
5. 'Pitch Blend' is ore of?
Answer:- Uranium
6. Which of the gas is odourless?
Answer:- Nitric oxide
7. Which is highly explosive material?
Answer:- RDX
8. Lipids are?
Answer:- Fatty acids
9. Which of the following is the source of common salt?
Answer:- Halite
10. Which of the following is a non-metal?
Answer:- Boron
11.Alkali metals are usually kept under?
Answer:-Kerosene
12.Which chemical is used in making of Photograph?
Answer:- Silver bromide
13. During a chloride test white fumes are produced due to the formation of?
Answer:- Ammonium Chloride
14. Oxidence is a systematic name of?
Answer:- Water
1 5. Scientist who first prepared urea?
Answer:- Wohler
16. Which compound is used sedative?
Answer:- Pottassium Bromide
17. Bakelite is a?
Answer:- Thermo setting plastic
18. Which acid is manufacturing by 'Contact Process'?
Answer:- H2So4
19. as the atomic number increases, electron affinity?
Answer:- Decreases
20. The process of bleaching by chlorine is called?
Answer:- Oxidation
