Questions and answers by

Abubakar Osemu Abdulrahman

Questions (22)

In Sn4+ + 2Fe2+ _____ Sn2+ + 2Fe3+ equation the specie reduced isa. Fe2+ b. both Sn4+ and Fe2+ c. None of the above. d. Sn4+
1. 1 answer
2. 168 views
Which can read data and convert them to a form that a computer can use?a. Input device b. Logic c. Storage d. Control
1. 1 answer
2. 134 views
The primary difference between RAM and secondary storage devices isa. RAM accepts input; secondary storage devices do not. b.
1. 1 answer
2. 155 views
Which of the following device is used to connect two systems, especially if the systems use different protocols ?a. Gateway b.
1. 1 answer
2. 142 views
The _____________ elements are specialized computers to connect two or more transmission lines.a. Broadcasting b. None of the
1. 1 answer
2. 761 views
The application layer of the OSI model isa. Four layer b. Seven layer c. Six layer d. Seven layer
1. 1 answer
2. 129 views
The most common input devices include:a. monitors and mice. b. printer and mice
1. 1 answer
2. 187 views
The input, output, and storage devices are known as:a. peripheral devices. b. secondary storage devices.
1. 1 answer
2. 134 views
Networks are monitored by security personnel and supervised by _____ who set(s) up accounts and passwords for authorized network
1. 1 answer
2. 117 views
What are auxiliary equipments?a. equipment b. guard rings c. voltage source d. devices
1. 2 answers
2. 170 views
Which device is used to handle carrier detection and collision detection in LANs ?a. Bridge b. Transreceiver c. None of the
1. 1 answer
2. 150 views
Which of the following compound is the most abundant compound in sea water?a. NaCl b. CaCl c. LiCl d. KCl
1. 1 answer
2. 105 views
Synthesis gas consists of equal volumes of:a. \\(NO^{2}\\) and \\(H_{2}O\\) b. CO and \\(H_{2}O\\) c. \\(N_{2}O \\)and CO d.
1. 1 answer
2. 186 views
Which of the following element is in group 4?a. C b. N c. F d. O
1. 1 answer
2. 74 views
A homonuclear diatomic molecule is made up of _____________.a. three types of elements b. one type of element c. two types of
1. 1 answer
2. 164 views
A homonuclear diatomic molecule is made up of _____________
1. 1 answer
2. 93 views
The ability of an element to participate in a chemical reaction is measured in form of its _________.a. ionization energy b.
1. 1 answer
2. 162 views
The ability of an element to participate in a chemical reaction is measured in form of its _________
1. 1 answer
2. 79 views
Which of the following is the least electronegative element in the periodic table?a. calchogens b. alkali earth metal c. alkali
1. 2 answers
2. 132 views
Which type of sulphide has a Zig-Zag chain structure?
1. 1 answer
2. 268 views
Between hydrogen bond and covalent bond which is stronger?
1. 1 answer
2. 71 views
Why are group 2 metals harder than group 1 metals?
1. 1 answer
2. 87 views