The question asks to identify the gas that reacts with calcium hydroxide to produce calcium carbonate and water. This is a classic chemical reaction often used to test for a specific gas.
Correct Option: C) Carbon dioxide gas is passed through calcium hydroxide to form calcium carbonate and water. This reaction is famously used as a test for the presence of carbon dioxide.
This question asks about the number of electrons carbon typically shares during bonding. To answer this, we need to understand carbon's electron configuration and its tendency to achieve a stable octet.
Correct Option: C) 4 — Carbon has 4 valence electrons and needs 4 more to complete its octet. It achieves this by sharing its 4 valence electrons, typically forming four covalent bonds. In each covalent bond, carbon shares one of its electrons.
This problem involves determining relative positions and distances based on a series of movements and turns. We will track Anita's path and the final position of the pole relative to her house using a coordinate system or by visualizing the directions.
C) The house is at \((0,0)\) and the pole is at \((0,7)\). Therefore, the house is 7 m towards the South from the pole.
The question asks to justify why plants have low energy needs. We need to consider the fundamental differences in plant physiology and lifestyle compared to animals, which typically have higher energy demands.
Correct Option: D) Energy needs differ between different body designs. Plants do not move and have a large proportion of dead cells in many tissues.
This option correctly identifies two major reasons for plants' low energy needs: their sessile nature (do not move) and the presence of a large proportion of dead cells in their tissues. Both factors contribute to a significantly lower metabolic rate and thus lower energy requirements compared to most animals.
The problem presents a series of three-letter combinations. We need to identify the pattern in how these letters change from one term to the next based on their position in the English alphabet. We will analyze the progression of the first, second, and third letters separately.
Analyze the first letter of each term:
The sequence of first letters is T, S, R, Q. This is a backward alphabetical sequence, where each letter is one position before the previous one (T - 1 = S, S - 1 = R, R - 1 = Q). Following this pattern, the first letter of the next term should be Q - 1 = P.
Analyze the second letter of each term:
The sequence of second letters is V, U, T, S. This is also a backward alphabetical sequence (V - 1 = U, U - 1 = T, T - 1 = S). Following this pattern, the second letter of the next term should be S - 1 = R.
Analyze the third letter of each term:
The sequence of third letters is X, W, V, U. This is again a backward alphabetical sequence (X - 1 = W, W - 1 = V, V - 1 = U). Following this pattern, the third letter of the next term should be U - 1 = T.
Combine the letters:
Based on the analysis, the next term in the series will have P as its first letter, R as its second letter, and T as its third letter. Therefore, the complete term is PRT.
Correct Option: C) PRT
This is a coding-decoding question based on the English alphabetical order. We need to find the pattern of transformation from the first set of letters to the second set for the given examples and then apply the same pattern to the target word.
C) EMOH is the correct option as it follows the established pattern of +3, -2, +3, -2 for each letter.
The question asks to identify the author of the book 'I Have the Streets - A Kutty Cricket Story'. This is a factual recall question related to sports literature, specifically cricket.
Correct Option: A) Ravichandran Ashwin is the author of the book 'I Have the Streets - A Kutty Cricket Story'. This book is a children's fiction work inspired by his own childhood experiences with cricket.
This problem requires substituting the given symbols with their corresponding mathematical operators and then evaluating the expression using the order of operations (BODMAS/PEMDAS).
The given expression is: 55 C 7 D 54 A 9 B 8 = ?
Step 1: Substitute the operators.
Replacing the letters with their corresponding mathematical operators, the expression becomes:
\[ 55 + 7 - 54 \div 9 \times 8 \]Step 2: Apply BODMAS/PEMDAS.
First, perform the division:
\[ 54 \div 9 = 6 \]Now the expression is:
\[ 55 + 7 - 6 \times 8 \]Next, perform the multiplication:
\[ 6 \times 8 = 48 \]Now the expression is:
\[ 55 + 7 - 48 \]Next, perform the addition:
\[ 55 + 7 = 62 \]Now the expression is:
\[ 62 - 48 \]Finally, perform the subtraction:
\[ 62 - 48 = 14 \]Thus, the value of the expression is \(14\).
A) 14 is the correct answer, as calculated by substituting the operators and following the order of operations.
The question asks for the primary purpose of the Artara'24 Fine Arts Exhibition and Competition. To answer this, we need to understand the typical goals of such events, especially those that include both an exhibition and a competition.
D) To discover and nurture emerging artistic talents — The inclusion of "Competition" in the event's name strongly suggests that its main goal is to identify, recognize, and support new or promising artists. Exhibitions provide a platform, and competitions provide the incentive and mechanism for discovery and nurturing.