Q. Which one of the following allotropes of carbon is isomorphous with crystalline silicon?
1) Coke
2) Diamond
3) Graphite
4) Coal
Q. Which one of the following is not an example of a redox reaction?
1) AlCl3+3H2O → Al(OH)3+ 3HCl
2) 2NaH → 2NA + H2
3) 4Fe + 3O2 → 2Fe2O3
4) CuSO4 + Zn → Cu + ZnSO4
Q. For an element with atomic number 35, which one of the following will be the correct number of electrons in its valence shell based on Bohr's model of an atom?
1) 1
2) 3
3) 5
4) 7
Q. A sound wave has a frequency of 1 kHz and a wavelength of 50 cm. How long will it take to travel 1 km?
1) 5 s
2) 4 s
3) 3 s
4) 2 s
Q. The energy possessed by a body due to its change in position or shape is called -
1) thermal energy
2) potential energy
3) kinetic energy
4) electric energy
Q. A boy of mass 52 kg jumps with a horizontal velocity of 2 m/s onto a stationary cart of mass 3 kg. The cart is fixed with frictionless wheels. Which one of the following would be the speed of the cart?
1) 2.15 m/s
2) 1.89 m/s
3) 1.51 m/s
4) 2.51 m/s
Q. A 5N force is defined when a mass of 10 kg is accelerated with -
1) 5.0cm/s2
2) 0.5 m/s2
3) 0.5 cm/s2
4) 5.0 m/s2
Q. A mass M is dragged by a pulley on a horizontal plane by a force anti-parallel to its displacement. The work done in pulling the mass M is -
1) zero
2) positive
3) infinite
4) negative
Q. The twinkling of a star is due to the atmospheric -
1) diffraction of starlight
2) reflection of starlight
3) refraction of starlight
4) dispersion of starlight
Q. Which one of the following is caused by a bacterial pathogen?
1) AIDS
2) Dengue fever
3) COVID-19
4) Typhoid fever
Interior design is a fun and creative field. It mixes art and practicality to make spaces look good and work well. With more people wanting great places to live and work, the need for skilled interior designers is rising. Let’s look at what it takes to have a career in interior design, including nee →
Foundation Date: December 8, 1991 Headquarters: The Republic of Belarus Executive Secretaries: Sergei Lebedev Member Countries: 12 Commonwealth of Independent States (CIS) was established on December 8, 1991, and the leaders of the Republic of Belarus, the Russian Federation, and Ukraine signed an a →
In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →
Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts & orders that have hitherto handled food-related issues in various Ministries →
If you contribute your content to our site. Please mail us your content to editor@onlinegk.net