Q1. The gas used to inflate the tyres of an aircraft is-
Q2. Which of these consists carbon?
"Did you Know? In this pack you will get All new content we launch in the next 1 months"
This is the most recommended and NRA-CET ready Pack!
Use Code 'DREAM' to avail at best price today
2000 Students are visiting this Product daily! Hurry now! Seats are Filling fast
About SSC Maha Pack
If you are preparing for more than 1 SSC exams then this is the pack we recommend you buy.
It is most cost-effective and you get access to 100% digital content for all SSC exams on Adda247.SSC Exams Covered in this Pack
SSC Maha Pack Highlights
- Structured course content
- Recorded classes available if you miss any live class
- Previous Years’ Papers of all upcoming exams.
- Full Length Mocks based on the latest pattern with detailed solutions (video solutions for certain topics)
- Topic level knowledge tests
- Strategy sessions, time management & Preparation tips from the experts
- Language: English & Hindi Medium
Validity: 1 Month
- Unlimited Live Classes & Recorded Video Courses
- Unlimited Tests and eBooks
- 1 Lakh+ Selections
- 15 Months
- 27 Months
- 9 Months
- 3 Months
- 1 Month
Q3. Of how many carats is the pure gold?
Q4. Octane number is a measure of the quality of-
(a) Edible oils
(c) Kerosene oil
(d) Perfumed oil
Q5. Table salt (NaCI) is a product of-
(a) Weak acid ad weak base
(b) Strong acid and strong base
(c) Weak acid and strong base
(d) Strong acid and weak basic
Q6. Which gas is mixed with Oxygen for respiration by divers in deep sea?
Q7. The chemical formula of Heavy Water is?
(a) H_2 O
(b) D_2 O
(c) H_2 CO_3
(d) H_2 S
Q8. The atomic nucleus was discovered by:
Q9.Which one of the following mixtures is homogeneous?
(a)Starch and sugar
(b)Methanol and water
(c)Graphite and charcoal
(d)Calcium carbonate and calcium bicarbonate
Q10. Polymer of Natural Rubber is-
Sol. Nitrogen gas is used in the tyres of an aeroplane. This is because the nitrogen gas does not support combustion and can assist in preventing wheel fire when the aircraft lands .
Sol. Coal minerals are divided mainly into four types on the basis of the percentage of Carbon amount-
Peat, Lignite, Bituminous and Anthracite.
Sol. It is an extension of the older carat (Karat in North American spelling) system of denoting the purity of gold by fractions of 24, such as ’18 carat’ for an alloy with 75% (18 parts per 24) pure gold by mass.
Sol. Quality of petrol is expressed by octane number and that of diesel by cetane number.
Sol. The compounds formed after reaction between the strong base and strong acid are known as neutral salt. Sodium chloride (NaCI) is an example of neutral which is salt also known as Table Salt.
Sol. Heliox is a breathing gas composed of a mixture of Helium (He) and Oxygen (O2). This is frequently used for respiration by divers in the deep sea.
Sol. Heavy water (D2 O) Deuterium Oxide is used as a moderator and coolant in nuclear reactors because it slows down neutrons effectively and also has a low probability of absorption of neutrons.
Sol. The nucleus is a very dense region consisting of protons and neutrons at the centre of an atom. It was discovered in 1911 as a result of Ernest Rutherford’s interpretation of the 1909 Geiger-Marsden gold foil experiment.
Sol. A mixture of methanol (a liquid) and water (a liquid) is homogeneous.
Sol. Polymerization is the process of joining together a large number of small molecules to make a number of the very large molecule. Natural rubber is the natural polymer of Isoprene.