Class X Science
Subject: Chemistry
Carbon and its Compounds
Q. 1. While cooking, if the bottom of the vessel is getting blackened on the outside, it means that:(A) The food is not cooked completely
(B) The fuel is not burning completely
(C) The fuel is wet
(D) The fuel is burning completely
Right Ans:- The fuel is not burning completely
Q. 2. Cation is formed when:
(A) Atom gains electrons
(B) Atom loses electrons
(C) Proton is lost by the atom
(D) Atom shares electrons
Right Ans:- Atom loses electrons
Q. 3. The I.U.P.A.C name of CH3CH2CH=CH2 is?
(A) 3-Butene
(B) Prop-1-ene
(C) But-1-ene
(D) Butyne
Right Ans:- But-1-ene
Q. 4. Which of the following compounds of carbon does not consist of ions?
(A) CHCl3
(B) CaCO3
(C) NaHCO3
(D) Ca2C
Right Ans:- CHCl3
Q. 5. The property of self-linkage among identical atoms to form long chain compounds is known as:
(A) Catenation
(B) Isomerisation
(C) Superposition
(D) Halogenation
Right Ans:- Catenation
Q. 6. Which of the following is the molecular formula of cyclobutane?
(A) C4H10
(B) C4H6
(C) C4H8
(D) C4H4
Right Ans:- C4H8
Q. 7. Which of the following statements about graphite and diamond is true?
(A) They have the same crystal structure
(B) They have the same degree of hardness
(C) They have the same electrical conductivity
(D) They can undergo the same chemical reactions
Right Ans:- They can undergo the same chemical reactions
Q. 8. How many number of carbon atoms are joined in a spherical molecule of buckminsterfullerene?
(A) 30
(B) 60
(C) 90
(D) 120
Right Ans:- 60
Q. 9. Which of the followings is the major constituent of the liquefied petroleum gas?
(A) Methane
(B) Ethane
(C) Propane
(D) Butane
Right Ans:- Butane
Q. 10. The organic compounds having functional group are known as:
(A) Aldehyde
(B) Ketone
(C) Carboxylic acids
(D) Alcohol
Right Ans:- Carboxylic acids
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