[Solved] Which of the following metals is the most reactive metal?
Calcium is an alkaline earth metal, and these types of metals are highly reactive. It reacts quickly with water to form calcium hydroxide and releases hydrogen gas.
PYQs Solution
Explore detailed subject-wise solutions to previous years’ questions (PYQs) from major competitive exams like SSC, NTPC, and state-level exams. Whether it’s Biology, Physics, Chemistry Indian Geography, Indian History, or General Awareness, find step-by-step solutions for each subject to enhance your exam preparation. Perfect for aspirants looking to master specific topics and improve accuracy in solving real exam questions.
This version emphasizes the subject-wise structure of your solutions, making it clear that you offer solutions for each subject individually.
[Solved] Cathode rays are a beam of:
Cathode rays are beams of electrons, which are tiny, negatively charged particles. These rays are produced inside a cathode ray tube when electricity is passed through a vacuum.
[Solved] Electron was discovered in the year 1897 by __.
J.J. Thomson discovered the electron in 1897. He was a British physicist known for his work on electricity and atomic structure.
Thomson made his discovery while experimenting with cathode rays (streams of electrons) in a special glass tube called a cathode ray tube.
[Solved] J J Thomson received the Nobel Prize in Physics for the discovery of __?
J.J. Thomson was a famous physicist from England. In 1897, he made a very important discovery – the electron! An electron is a tiny, negatively charged particle that is found in every atom. Thomson’s discovery changed how scientists understood atoms and matter.
[Solved] _________ is Not a constituent of toothpaste.
The correct answer is C. Lubricant. Lubricants are not typically found in toothpaste. They are used in machinery and other products to reduce friction between moving parts, but they are not needed in toothpaste.
[Solved] _______ is the process of absorption of moisture from air.
The correct answer is A. Deliquescence.. Deliquescence is the process where certain substances absorb moisture from the air until they dissolve in the absorbed water and form a solution.
[Solved] Quartz used in clocks is ______
Question 2: Quartz used in clocks is ______ [RRB NTPC 19th April 2016 Shift 1] A. Nitrogen SilicateB. Silicon DioxideC. Sodium SilicateD. Calcium Silicate Explore All Chemistry PYQs Explore All RRB NTPC PYQs Answer: B. Silicon Dioxide Detailed Solution: Quartz is a type of mineral that is mainly made of Silicon Dioxide (SiOâ‚‚). This mineral … Read more
[Solved] Methane is Known as ____:
Methane is known as Marsh gas. Methane is also a greenhouse gas that contributes to global warming, as it traps heat in the atmosphere.
