Second Quarter Test Grade 9 Science PDF

SECOND QUARTER TEST IN GRADE 9 SCIENCE NAME: ______________________________ SCHOOL: ________________________________ GRADE &SECTION: __________________ SCORE: __________________ MULTIPLE CHOICE. DIRECTION: Write the letter that corresponds to the correct answer. Any kind of...

SECOND QUARTER TEST IN GRADE 9 SCIENCE NAME: ______________________________ SCHOOL: ________________________________ GRADE &SECTION: __________________ SCORE: __________________ MULTIPLE CHOICE. DIRECTION: Write the letter that corresponds to the correct answer. Any kind of alteration is considered incorrect. ____1. What does uncertainty principle states? A. matter and energy are really the same thing. B. it is impossible to know anything with certainty. C. there can only be one uncertain digit in a reported number. D. it is impossible to know the exact position and momentum of an electron. ____2. Which of the following is entitled to Erwin Schrodinger which led to the development of quantum mechanical model? A. nuclear equation B. planetary equation C. mathematical equation D. electron equation. ____3. When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected. This result indicates that most of the volume of a gold atom consists of ____. A. deuterons B. neutrons C. protons D.unoccupied space ____4. The valence electron of an element is 5s24d3. To what group does it belong? A. 2 B. 3 C. 4 D. 5 ____5. The complete electron configuration of argon, element 18, is __________. A. 1s2 2s2 2p6 3s2 3p6 B. 1s2 2s2 2p10 3s2 3p2 C. 1s 4 2s 4 2p6 3s 4 D. 1s4 2s4 2p10 ____6. The condensed electron configuration of silicon, element 14, is __________. A.  He 2s4 2p6 B.  Ne 2p10 C.  Ne 3s2 3p2 D.  He 2s4 ____7. How many orbitals have the quantum numbers: n = 4, l = 3, ml = 0 ? A. 7 B. 3 C. 1 D. 0 ____8. The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X? A. main group element B. chalcogen C. halogen D. transition metal ____9. How many electrons are present in the atom with electronic structure 1s22s22p4? A. 5 B. 8 C. 9 D. 13 ____10. Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, ml, and ms) A. 2, 2, -1, -1/2 B. 1, 0, 0, ½ C. 3, 3, 3, 1/2 D. 5, 4,- 5, ½ ____11. Which of the following is a set of quantum numbers for the 25th electron? A. n=3, l=2, m=0, s= -1/2 C. n=3, l=2, m=+2, s= +1/2 B. n=3, l=3, m= -1, s=+1/2 D. n=4, l=1, m=0, s= -1/2 ____12. Which type of chemical bond that is formed from the attraction of an atom that has lost an electron for an atom that has gained an electron ? A. covalent bond B. ionic bond C. metallic bond D. hydrogen bond ____13. Which type of chemical bond that is consists of positive ions in a sea of electrons? A. covalent bond. B. ionic bond. C. metallic bond D. hydrogen bond ____14. An atom has a three valence electrons, ends with p and four occupied main energy levels. What is the position of this element in the periodic table? A. family IIIA, period 4 C. family IVA, period 3 B. family IIIB, period 4 D. family VA, period 4 ____15. Which molecule has a Lewis structure that does not obey the octet rule? A. N2O B. CS2 C. PH3 D. NO2 ____16. Which of the electron dot structures above represents a carbon dioxide molecule? A. B. C. D. ____17. Use the electronegativity scale below to answer the next question Element Electronegativity F= 4.0 O=3.5 Cl=3.0 Br=2.8 S=2.5 H=2.1 Al=1.5 Mg=1.2 Ca=1.0 Li=0.9 Na=0.9 K=0.8 Which pair of elements is most likely to form a covalently bonded compound? A. Li and Cl B. S and O c. Ca and S d. Na and Br ____18. What is the total number of electrons shared in a double covalent bond between two atoms? A. 1 B. 8 C. 2 D. 4 ____19. How many electrons are gained/ lost by magnesium and what is the charge on the ion that it forms? A. loses 2 electrons to form a magnesium ion with a 2 – charge B. gains 2 electrons to form a magnesium ion with a 2 – charge C. loses 2 electrons to form a magnesium ion with a 2 + charge D. gains 2 electrons to form a magnesium ion with a 2+ charge ____20. A pure substance does not conduct electricity in the solid state but it does dissolve in water and the resulting solution conducts electricity. The substance has a fairly high melting point. The substance is most likely to be _______________. A. ionic compound C. metal B. covalent compound D. network solid ____21. When covalent bonds are formed between atoms having different electronegativities, the electrons tend to spend more time at the atom with the greater electronegativity. What chemical bonds are being described? A. electrovalent bonds C. coordinate covalent bonds B. polar covalent bonds D. none of these ____22. The bond between sulfur (electronegativity value 2.5) and chlorine (electronegativity value 3.0) would be _______________. A. not formed B. ionic C. polar covalent D. nonpolar covalent ____23. Which statement best describes the substance that results when electrons are transferred from a metal to a nonmetal? A. It contains ionic bonds and has a low melting point. B. It contains covalent bonds and has a low melting point. C. It contains ionic bonds and has a high melting point. D. It contains covalent bonds and has a high melting point. ____24. Which of the following is NOT the characteristic of metal? A. for ceramic containers B. for electrical wirings C. for jewelries D. for roofs ____25. Which of the following does negatively charged ion attracts? A. anion B. cation C. neutral atom D. proton ____26. Ionic compounds may contain polyatomic ions, which consist of groups of atoms having an electrical charge. An example is magnesium nitrate. Which of the following is the formula for magnesium nitrate? A. MgNO3 B. Mg2NO3 C. Mg(NO3)2 D. Mg2(NO3)3 ____27. Which of the following states that “atoms like to have full valence shells of eight electrons?” A. valence rule B. anion rule C. cation rule D. octet rule ____28. Which statement(s) is/are TRUE? A. generally organic compounds have higher melting point than inorganic compound. B. generally inorganic compounds have higher melting point than organic compound. C. generally organic compounds and inorganic compound have the same melting point. D. none of the above ____29. Which statements is correct? A. generally organic compounds have higher boiling point than inorganic compound. B. generally inorganic compounds have higher boiling point than organic compound. C. generally organic compounds and inorganic compound have the same boiling point. D. none of these ____30. Methane (CH4) is a component of natural gas, what type of chemical bond present in it? A. Ionic bond B. H-Bond C. Covalent bond D. None of these ____31. Evaluate which of the given statements below best described carbon atom? I. Carbon atom can form single, double or triple bonds. II. Carbon atom can form chemical bonds with other carbon atoms and other nonmetal atoms in any ways. III. Carbon atom is basic for all life IV. Carbon atoms can be produced long carbon chain A. I only B. I & III only C. I, II, & VI only D. I, II, III, & IV ____32. Evaluate the given materials below, which of them is/are NOT containing carbon atom? I. Agua Oxinada (Hydrogen Peroxide) II. Water III. Petroleum VI. Isopropyl Alcohol A. I & II only B. III & IV only C. II, III& IV only D. I, III& IV only ____33. Which of the following groups of Organic compounds are both composed of hydrocarbons? A. Alkynes and Ketones C. Alcohols and Aldehydes B. Alkanes and Alkenes D. Amines and Amides ____34. Acetone is an example of what group of organic compound. A. Carbonyl group C. Hydrocarbon group B. Hydroxyl Group D. None of the above ____35. Which of the following is an example of Alkane? A. Propene B. Butane C. Ethene D. Propyne ____36. Which of the following statements best described Hydrocarbons? A. Are specific group of organic compounds which contain carbon and hydrogen only. B. it’s basic groups are alkanes, alkenes, and alkynes. C. Either A or B D. Neither A nor B ____37. How many moles are the in 8.0 grams of silver (Ag)? A. 3.16 moles C. 2.16 moles B. 1.16 moles D. 0.16 moles ____38. How many moles are in 17.0 grams of H2O2? A. 0.25 moles C. 0. 30 moles B. 0.50 moles D. 0.75 moles ____39.Which of the following is the lightest? A. 3 grams of Hydrogen C. 1 mole helium B. 4 moles of Hydrogen D. 3 grams of Helium ____40. Which of the following is the heaviest? A. 1 mole of Boron C. 1 mole of Carbon B. 1 mole of Fluorine D. 1 mole of Calcium ____41. Calculate how many moles are in 2.00 grams of H2O? A. 0.11 moles B. 1.11 moles C. 2.11 moles D. 3.11 moles ____42. Calculate how many grams are present in 0.700 moles of H2O2? A. 43.8 grams B. 33.8 grams C. 23.8 grams D. 53.8 grams ____43. Determine the percent composition of each element in CuBr2. A. Cu: 28%, & Br:72% C. Cu: 72%, & Br:28% B. Cu: 46%,& Br: 54% D. Cu: 54%,& Br:46% ____44. Find the percent composition of all element in compound: NaOH A. Na: 2.5%, O: 40.0%, H 57.5% C. Na: 40.0%, O: 57.5%, H 2.5% B. Na: 57. 5%, O: 2.5%, H 40.0% D. Na: 57. 5%, O: 40.0%, H 2.5% For items 45-49: Nueva Ecija is also known as the rice granary of the Philippines because its huge volume of rice being produced throughout the season. But nowadays its farm lands have been depleted the amount of nitrogen available in the soil, which is one of the 16 essential elements needed by the plants for their optimum growth and development. The primary source of available nitrogen can be found in Ammonium Nitrate- NH4NO3., ammonia- NH3, and Ammonium Sulfate – (NH4)2SO4. ____45. Calculate the percent composition of nitrogen in Ammonium Nitrate- NH4NO3. A. 82. 22 % B. 24.99% C. 35.00% D. 44.60% ____46. Calculate the percent composition of nitrogen in ammonia- NH3. A. 82. 22 % B. 24.99% C. 35.00% D. 44.60% ____47. Calculate the percent composition of nitrogen Ammonium Sulfate – (NH4)2SO4. A. 82. 22 % B. 24.99% C. 35.00% D. 44.60% ____48. Which fertilizer have the highest percent composition of nitrogen? A. Ammonium Nitrate- NH4NO3 C. ammonia- NH3 B. Ammonium Sulfate – (NH4)2SO4 D. They have the same composition ____49. Which fertilizer have the lowest percent composition of nitrogen? A. Ammonium Nitrate- NH4NO3 C. Ammonium Sulfate – (NH4)2SO4 B. Ammonia- NH3 D. They have the same composition ____50. Which substance has greater percent by mass of hydrogen: C4H8 or C8H18? A. C4H8 B. C8H18 C. these are equal D. needs more data Prepared by: CLERILYN P. BADUA CRISTOPER T. CARILLO T-III, ZARAGOZA NHS T-III, STO. DOMINGO NTS Reviewed and Checked: ROSEMARIE Z. BURAYAG OIC- Education Program Supervisor, Science Noted: JAYNE M. GARCIA, Ed.D Chief, Curriculum Implementation Division Answer key: 1. C 26. C 2. C 27. D 3. D 28. B 4. D 29. A 5. A 30. C 6. C 31. D 7. A 32. B 8. D 33. B 9. B 34. A 10. B 35. B 11. C 36. C 12. B 37. D 13. C 38. B 14. A 39. C 15. A 40. A 16. A 41. A 17. B 42. C 18. D 43. A 19. C 44. D 20. A 45. C 21. C 46. A 22. C 47. B 23. C 48. C 24. A 49. C 25. B 50. B