Dear Readers,
As SSC CGL notification is out and candidates have started their preparation for this exam. Mahendras also has started special quizzes for this examination. This series of quizzes are based on the latest pattern of the SSC CGL examination. Regular practice of the questions included in the quizzes will boost up your preparations and it will be very helpful in scoring good marks in the examination.
Q. 1 Who among the following was the first to classify elements in the form of periodic table?
(a) Mendeleev
(b) Lavoisier
(c) John Newlands
(d) Lothar Meyer
Q.2 Which scientist arranged the Periodic Table of Elements in the order of increasing atomic masses?
(a) Robert Boyle
(b) William Ramsay
(c) Henry Moseley
(d) Dmitri Mendeleev
Q. 3 The horizontal rows in the modern periodic table are called:
(a) Clusters
(b) Families
(c) Groups
(d) Periods
Q.4 Of the known elements in the periodic table, only_____ are gases under normal atmospheric conditions.
(a) 11
(b) 13
(c) 12
(d) 10
Q.5 Which of the following elements has the lowest electronegativity?
(a) tungsten
(b) Osmium
(c) Hydrogen
(d) Francium
Q.6 Which of the following elements has the highest density ?
निम्नलिखित में से किस तत्व का घनत्व सबसे अधिक है?
(a) Hydrogen
(b) Tungsten
(c) Osmium
(d) Fluorine
Q.7 Which of the following statements about bromine is correct?
(a) It is a metal.
(b) It is a solid at room temperature.
(c) It is a liquid at room temperature.
(d) It is a gas at room temperature
Q.8 Which of the following is known as alkaline earth metal?
(a) Cobalt
(b) Magnesium
(c) Copper
(d) Platinum
Q.9 Which of the following elements salts are most soluble?
(a) Potassium
(b) Rubidium
(c) Sodium
(d) Lithium
Q.10 Halogens have_____ electrons in their outermost shells.
(a) eight
(b) seven
(c) five
(d) six
ANSWER-
Q.1. (A)
Q.2. (D)
Q.3. (D)
Q.4. (A)
Q.5. (D)
Q.6. (C)
Q.7. (C)
Q.8. (B)
Q.9. (C)
Q.10. (B)
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MAHENDRA GURU