65. A substance composed of two or more different types of atoms is a(n) A. comp
ID: 271529 • Letter: 6
Question
65. A substance composed of two or more different types of atoms is a(n) A. compound. B. element. C. ion. D. molecule E. compound and a molecule. 66. Isotopes of the same element have A. the same number of neutrons but different numbers of protons B. different numbers of protons and electrons. C. the same mass number. D. the same atomic number but differ in their mass numbers E. no mass number. 67. Consider the following five terms. Which term does not belong with the other four terms? A. disaccharide B. sucrose C. lactose D. maltose E. glucose 68. Transverse foramina are found in A. cervical B. thoracic C. lumbar D. sacral E. antebrachial vertebrac. 69. The lambdoidal suture is located between the A. frontal and parietal bones. B. parietal and temporal bones C. temporal and occipital bones. D. parietal and occipital bones. E. two parietal bones.Explanation / Answer
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65. A substance composed of two or more different types of atoms is
Answer: Option A. (Compound)
Explanation: The compound is the material made from two or more chemical elements which are bonded together by means of either covalent or ionic bond. A material made by the joining of two or more than two similar type of atoms is not considered as a compound.
66. Isotopes of the same element have
Answer: Option D (the same atomic number but differ in their mass number)
Explanation: These are the variant of a particular chemical element which differs only in neutron number. The all isotopes of an element have the same number of protons in each atom. The number of protons within the atom is called atomic number, which is further equal to the number of electrons in the neutral atom. Example isotopes of carbon are carbon-12, carbon 13 and carbon 14.
67. Consider the following five terms. Which term does not belong with the other four terms.
Answer: Option E (Glucose)
Explanation: All others such as sucrose, lactose, maltose are disaccharide means they are the double sugars and made when two monosaccharides are joined together by glycosidic bonds. So we can say that these all (sucrose, lactose, maltose, and disaccharide) belongs to the same type. Whereas, Glucose is the monosaccharide which is the basic unit of carbohydrates.
68. Transverse foramina are found in……..vertebrae.
Answer: Option A. (cervical)
Explanation: It is the type of cervical vertebrae. It transmits the vertebral artery and vein as well as the vertebral nerve, a branch from the cervicothoracic ganglion. It is also called foramen transversarium.
69. The lambdoidal suture is located between the
Answer: Option D. (parietal and occipital bones)
Explanation: It is a fibrous joint located on the skull just below the occipital bone and it forms the round structure of the back of the skull. This joint connects the parietal and occipital bones together. It is further continued with the occipitomastoid suture.
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