NEST is especially designed to students’ choice, skills and interests as is essential at this stage of their education. Moreover, they also get instant cash prizes of handsome amount and certificates of appreciation as incentives for their outstanding and exemplary performance in the test.
Q1. The process of evaporation causes A. cooling B. heating C. temperature increase D. none of these
Q2. Which of the following has the least energetic molecules? A. solids B. liquids C. gases D. plasmas
Q3. The force of attraction between the particles of matter is highest in A. steel B. mustered oil C. refined oil D. dry air
Q4. Iodized common salt is A. pure substance B. oxidized substance. C. heterogeneous mixture D. homogenous mixture
Q5. The fine particles of an insoluble substance uniformly dispersed throughout a gas or liquid is called A. sucrose B. precipitate C. colloidal solution D. suspension
Q6. An emulsion is a colloidal solution formed by A. mixing two immiscible liquid B. mixing any two liquids C. mixing two miscible liquids D. mixing any two gases
Q7. Atomic number is equal to the A. atomic weight of the element B. mass number of the nucleus C. number of protons in the nucleus D. number of neutrons in the nucleus
Q8.When two liquids in a mixture differ by their boiling points. Which of the following I the best method to separate these liquids? A. distillation B. filtration C. evaporation D. chromatography
Q9.The path of light gets illuminated when passes through the A. blood solution (aq.) B. copper sulphate solution (aq.) C. acetic acid solution (aq.) D. brine solution (aq.)
Q10. Property due to which a coil of copper wire can be made by pulling a large piece of copper metal is A. malleability B. sonority C. tensility D. ductility
NEST Junior-II Sample Questions
Chemistry
Q.1. Isotopes have same number of ———— (A) Protons (B) Neutrons (C) Nucleus (D) Positions
Q.2. Number of orbitals present in third shell is ———- (A) 1 (B) 3 (C) 9 (D) 18
Q.3. Which of the following is the most electropositive element? (A) Phosphorus (B) Magnesium (C) Aluminium (D) Sulphur
Q.4. A gaseous mixture was prepared by taking equal mole of CO and N2. If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen in the mixture is – ____________ (A) 0.5 atm (B) 0.8 atm (C) 0.9 atm (D) 1 atm
Q.5. A base as defined by Bronsted theory, is a substance which can —————- (A) Accept proton (B) Donate proton (C) Lose a pair of electron (D) Gain a pair of electron
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