Bissoy.com
Doctors Medicines MCQs Q&A

Select the option that correctly matches the contents of the first column with the contents of the second column. A. Elements combine in fixed ratios I. Dalton’s atomic theory B. Atoms are indivisible II. The same number of molecules C. Sulphate and oxalate ions are anions, whereas magnesium and III. Law of constant proportions D. Gram atomic mass of an element and the gram molecular mass of a compound containing. IV. Ammonium ions are cations

Select the option that correctly matches the contents of the first column with the contents of the second column. A. Elements combine in fixed ratios I. Dalton’s atomic theory B. Atoms are indivisible II. The same number of molecules C. Sulphate and oxalate ions are anions, whereas magnesium and III. Law of constant proportions D. Gram atomic mass of an element and the gram molecular mass of a compound containing. IV. Ammonium ions are cations Correct Answer A-lll, B-l, C- IV, D-ll

A-lll, B-l, C- IV, D-ll is the correct match.

A. Elements combine in fixed ratios

Law of constant proportions

B. Atoms are indivisible

Dalton’s atomic theory

C. Sulphate and oxalate ions are anions, whereas magnesium and

Ammonium ions are cations

D. Gram atomic mass of an element and the gram molecular mass of a compound containing

The same number of molecules

Related Questions

Consider the following assumptions made while developing the ionic packing theory: 1. Cations and anions are spherical but these spheres are not hard 2. Cations are always smaller than anions 3. Each cation would tend to be surrounded by the maximum number of anions permitted by the geometry 4. Cations and anions do not touch each other  Which of the above assumptions are correct?
Which of the following statements are true about anions and cations? Statement 1: In anions, the electrons are more than the protons. Statement 2: In cations, the electrons are less than the protons.
In the following question, two columns are given containing three phrases each. In the first column, phrases are A, B, and C and in the second column, the phrases are D, E and F. A phrase from the first column may or may not connect with a phrase from the second column to make a grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If, none of the options given forms a correct sentence after combination, select 'None of these' as your answer. Column (1) Column (2) (A) An important point that the Survey makes is that of the Indian economy (D) based on naturally occurring biological processes. (B) Tree Plantation drives combat many environmental issues like deforestation, erosion of soil, desertification in semi-arid areas, global warming and hence (E)recovering during the second half of this year. (C) Organic farming methods combine scientific knowledge of ecology and some modern technology with traditional farming practices (F) enhancing the balance of the environment.
In the following question, two columns are given containing three phrases each. In the first column phrases are A, B, and C and in the second column, the phrases are D, E, and F. A phrase from the first column may or may not connect with phrase from the second column to make grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If none of the options forms a correct sentence after combination, select ‘None of these’ as your answer.  Column 1  Column 2  A. Scientists who systematically eavesdropped on bat roosts in Costa Rica have discovered  D. they do not act on their climate promises, and it now seems the UK is in her sights.  B. The team has spent six years developing a completely new way of collecting the signal  E. combine all the data into images that are not only of enormous scientific interest and also of great beauty.  C. The Swedish activist has a reputation for calling out world leaders when  F. that baby-bat babbling bears a striking resemblance to that of human infants.
An alloy of zinc, magnesium, and copper contains 80% of copper, 15% of zinc, and 5% of magnesium. The second alloy of copper and magnesium only is melted with the first and the mixture contains 75% of copper, 5% of zinc and 20% of magnesium. What is the percentage of magnesium in the second alloy?
Consider the following two C code segment. Y and X are one- and two-dimensional arrays of size n and n × n respectively, where 2 ≤ n ≤ 10. Assume that in both code segments, elements of y are initialized to 0 and each element X[i] [j] of array X is initialized to i + j. Further assume that when stored in main memory all elements of x are in same main memory page frame. Code segment 1:                 //initialize elements of y to 0                 //initialize elements X[i] [j] of X to i+j                       for (i = 0; i < n; i++)                                 Y[i] += X[0] [i]; Code Segment 2:                 //initialize elements of Y to 0                 //initialize elements X[i] [j] of X to i+j                        for (i = 0; i < n; i++)                                 Y[i] += X[i] [0]; Which of the following statements is/are correct? S1: Final contents of array Y will be same in both code segments S2: Elements of array X accessed inside the for loop shown in code segment 1 are contiguous in main memory S3: Elements of array X accessed inside the for loop shown in code segment 2 are contiguous in main memory
Consider the following postulates of the atomic theory by John Dalton. Identify the correct ones. Atoms of various elements exhibit different natures. They do not have similar features. By combining in a ratio of the whole number, atoms form the compounds. Atoms are never destroyed nor created during any chemical reaction. 
In the following question, 2 columns are given containing three phrases/ sentences each. In the first column sentences A, B, C and in the second column D, E, F are given. A sentence from the first column may or may not connect with another sentence/phrase from the second column to make a grammatically and contextually correct sentence. The question has five options, four of which display the sequences of the sentences. If none of the above is the answer, then mark option (e) as the answer. Column 1 Column 2 A. Blowing the horn loudly in front of a school D. Every trees dirty B. The pollution has made E. Is strictly forbidden by law C. The old man was rushed to the hospital F. After the movie was a hit at the premier
Which statement(s) is/are CORRECT regarding Dalton’s Atomic theory? I. All matters are made of very tiny particles. II. Atoms of different elements have different masses and chemical properties. III. The relative number of atoms is variable in any compound.
Consider the following definitions: I. Isotopes: Having the same atomic number but a different mass number.  II. Isotones: Atoms of different elements having the same number of electrons.  III. Isobars: Same mass number but different atomic numbers  Which among the above is/are correctly matched?